Master Lock

<h2 id="history">History</h2>
<h3>20th century</h3>
Before co-founding the company in 1921, Harry Soref had been a traveling locksmith in the U.S., Canada, and Mexico,<a class="footnote-ref" id="fnref:4" href="#fn:4">4</a><a class="footnote-ref" id="fnref:5" href="#fn:5">5</a> had invented a lock for protecting military equipment,<a class="footnote-ref" id="fnref:6" href="#fn:6">6</a> and had founded the "Master Key" company for making master <a href="/facts/Skeleton_key/1PURJfbd">skeleton keys</a>.<a class="footnote-ref" id="fnref:7" href="#fn:7">7</a> In 1919, Soref then invented a padlock design that used laminated steel layers to economically produce an exceptionally strong lock body.<a class="footnote-ref" id="fnref:8" href="#fn:8">8</a>
He tried unsuccessfully to get some large companies interested in using his design, so he and two friends—P. E. Yolles and Sam Stahl,<a class="footnote-ref" id="fnref:9" href="#fn:9">9</a>—worked together to found the Master Lock company in <a href="/facts/Milwaukee/Ucx5PVHn">Milwaukee</a> in 1921 to produce the locks themselves, initially with five employees.<a class="footnote-ref" id="fnref:10" href="#fn:10">10</a><a class="footnote-ref" id="fnref:11" href="#fn:11">11</a> In 1924, the company was granted the first patent on such a laminated lock design.<a class="footnote-ref" id="fnref:12" href="#fn:12">12</a> Stahl led the company to become a major manufacturer of locks and the three co-founders worked closely together until Soref's death in 1957.<a class="footnote-ref" id="fnref:13" href="#fn:13">13</a> However, the brand had not yet reached its peak status as a familiar consumer brand at the time of Soref's death.<a class="footnote-ref" id="fnref:14" href="#fn:14">14</a> Stahl led the company until selling his shares to Soref's children who took over the company management, later selling the company to the American Brands Corporation in 1970.<a class="footnote-ref" id="fnref:15" href="#fn:15">15</a>
In 1974, Master Lock ran a <a href="/facts/Super_Bowl_commercials/M2V0P5Pl">Super Bowl ad</a> demonstrating one of their locks withstanding a shot by a <a href="/facts/Sniper/jCTJcvwx">sharpshooter</a>, thereby proving its durability and thus their slogan "Tough Under Fire". Master Lock continued running similar ads during future Super Bowls, spending almost their entire annual marketing budget on the single commercial.<a class="footnote-ref" id="fnref:16" href="#fn:16">16</a> Later, Master would incorporate the image into a one second-long <a href="/facts/Blipvert/I1QlIs4y">blipvert</a> commercial in 1998.<a class="footnote-ref" id="fnref:17" href="#fn:17">17</a>
At its peak in the early 1990s, the company employed about 1,300 workers in the Milwaukee, Wisconsin area.<a class="footnote-ref" id="fnref:18" href="#fn:18">18</a><a class="footnote-ref" id="fnref:19" href="#fn:19">19</a> In 1993, the company began moving much of its manufacturing to China.<a class="footnote-ref" id="fnref:20" href="#fn:20">20</a><a class="footnote-ref" id="fnref:21" href="#fn:21">21</a> Motivated by the <a href="/facts/North_American_Free_Trade_Agreement/IdgE7ClR">North American Free Trade Agreement</a> (NAFTA), they later also moved some manufacturing to Mexico.<a class="footnote-ref" id="fnref:22" href="#fn:22">22</a> Most of the jobs at its Milwaukee plant—over 1,000—were eliminated, although the company continued to perform some of its manufacturing at the plant using heavily <a href="/facts/Automation/3YlF2K5q">automated</a> manufacturing processes.<a class="footnote-ref" id="fnref:23" href="#fn:23">23</a><a class="footnote-ref" id="fnref:24" href="#fn:24">24</a>

<h3>21st century</h3>
In 2002, Master Lock released its Titanium Series of padlocks, the first major redesign in fifty years. The goal was to add design variety and aesthetic value to the utilitarian functionality of their locks. The lock mechanism has titanium reinforced steel, with a stainless steel body. A shroud covers parts of the stainless steel, allowing the locks to come in different colors.<a class="footnote-ref" id="fnref:25" href="#fn:25">25</a> Master Lock requested that the designer locks be stocked in departments outside the hardware section of retailers.<a class="footnote-ref" id="fnref:26" href="#fn:26">26</a> In 2003, the company acquired Illinois based American Lock and all their intellectual and material property.<a class="footnote-ref" id="fnref:27" href="#fn:27">27</a>
In 2010, Master Lock began offering a <a href="/facts/Password_manager/NUJzIXPR">password manager</a> service called Master Lock Vault that includes a web site and associated software applications for use on various devices.<a class="footnote-ref" id="fnref:28" href="#fn:28">28</a> In 2011, Fortune Brands spun off Master Lock as part of Fortune Brands Home & Security.<a class="footnote-ref" id="fnref:29" href="#fn:29">29</a>
In January 2011, it was announced that about 36 jobs were being <a href="/facts/Offshoring/pfSe1r7e">returned from China</a> to the Milwaukee plant, which would increase the number of positions at the plant to 379.<a class="footnote-ref" id="fnref:30" href="#fn:30">30</a><a class="footnote-ref" id="fnref:31" href="#fn:31">31</a> Most of the added jobs were for making <a href="/facts/Combination_lock/Xy6zqVFT">combination locks</a>, subassemblies and keys.<a class="footnote-ref" id="fnref:32" href="#fn:32">32</a> It was reported that the company would also continue to contract with three Chinese factories and about twenty Chinese suppliers, and operate its <a href="/facts/Maquiladora/XBhPpYqo">maquiladora</a> near the <a href="/facts/Arizona/6ayM3swJ">Arizona</a> border, where Mexican workers perform non-automated labor-intensive work such as assembling made-in-Milwaukee components.<a class="footnote-ref" id="fnref:33" href="#fn:33">33</a><a class="footnote-ref" id="fnref:34" href="#fn:34">34</a>
In February 2012, U.S. President <a href="/facts/Barack_Obama/76wUMgL1">Barack Obama</a> visited the Master Lock headquarters in Milwaukee, Wisconsin and lauded the company's recent return of jobs from overseas locations.<a class="footnote-ref" id="fnref:35" href="#fn:35">35</a> As of that time, it was reported that the company had returned about 100 jobs from overseas during the preceding two-year period.<a class="footnote-ref" id="fnref:36" href="#fn:36">36</a> In 2012, Master Lock introduced a line of combination padlocks called the dialSpeed.<a class="footnote-ref" id="fnref:37" href="#fn:37">37</a> The dialSpeed lock is battery-operated, has a lit face, and features multiple user-programmable combinations. It has a master unlocking code that can be accessed through the company web site.<a class="footnote-ref" id="fnref:38" href="#fn:38">38</a> In 2014, Master Lock acquired <a href="/facts/Sentry_Group/pm2m6tnK">SentrySafe</a> for $117.5 million.<a class="footnote-ref" id="fnref:39" href="#fn:39">39</a>
In May 2023, Master Lock announced its Milwaukee plant would be closing.<a class="footnote-ref" id="fnref:40" href="#fn:40">40</a> They completed the closure in March 2024.<a class="footnote-ref" id="fnref:41" href="#fn:41">41</a> In the process, they laid off over 300 employees.<a class="footnote-ref" id="fnref:42" href="#fn:42">42</a>

<h2 id="locks">Locks</h2>
Master Locks are made for a variety of uses, including personal locking, vehicle locking, and others.<a class="footnote-ref" id="fnref:43" href="#fn:43">43</a> New products in the 2000s moved beyond locks, such as industrial space cover sealing mechanisms.<a class="footnote-ref" id="fnref:44" href="#fn:44">44</a> As of 2012<a href="https://en.wikipedia.org/w/index.php?title=Master_Lock&action=edit">[update]</a>, almost all of the company's locks are known to have serious security flaws, which allow for easy bypass through <a href="/facts/Lock_picking/0gshkmVA">lock picking</a> or <a href="/facts/Lock_bumping/tdHdCT60">bump keys</a> or other forms of bypassing. This is because the locks mostly contain standard cylindrical pins, with no, or poorly made, serrated or spool driver pins.<a class="footnote-ref" id="fnref:45" href="#fn:45">45</a>

<h2 id="external-links">External links</h2>
<ul><li><a href="https://www.masterlock.com/">Official website</a> </li></ul>

<h2 id="references">References</h2>

<ol>
<li id="fn:1">Schmid, John (January 1, 2011). "Master Lock reassessing China: Milwaukee-based company finds it can compete better from U.S. soil". Milwaukee Journal Sentinel. Archived from the original on January 5, 2011. <a href="https://web.archive.org/web/20110105171005/http://www.jsonline.com/business/112759524.html" target="_blank">https://web.archive.org/web/20110105171005/http://www.jsonline.com/business/112759524.html</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></li>
<li id="fn:2">Harry E. Soref, Archived March 6, 2011, at the Wayback Machine Univ. Wisconsin Milwaukee Sheldon B. Lubar School of Business. <a href="http://www4.uwm.edu/business/corporate/gallery/soref.cfm" target="_blank">http://www4.uwm.edu/business/corporate/gallery/soref.cfm</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></li>
<li id="fn:3">Alfred, Randy (March 2, 2011) [March 2, 2009]. "March 2, 1887: Birth of the Master Locksmith". Wired. Retrieved August 3, 2017. <a href="https://www.wired.com/thisdayintech/2011/03/0302harry-sorref-born-master-lock/" target="_blank">https://www.wired.com/thisdayintech/2011/03/0302harry-sorref-born-master-lock/</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></li>
<li id="fn:4">Harry E. Soref, Archived March 6, 2011, at the Wayback Machine Univ. Wisconsin Milwaukee Sheldon B. Lubar School of Business. <a href="http://www4.uwm.edu/business/corporate/gallery/soref.cfm" target="_blank">http://www4.uwm.edu/business/corporate/gallery/soref.cfm</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></li>
<li id="fn:5">Alfred, Randy (March 2, 2011) [March 2, 2009]. "March 2, 1887: Birth of the Master Locksmith". Wired. Retrieved August 3, 2017. <a href="https://www.wired.com/thisdayintech/2011/03/0302harry-sorref-born-master-lock/" target="_blank">https://www.wired.com/thisdayintech/2011/03/0302harry-sorref-born-master-lock/</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></li>
<li id="fn:6">Alfred, Randy (March 2, 2011) [March 2, 2009]. "March 2, 1887: Birth of the Master Locksmith". Wired. Retrieved August 3, 2017. <a href="https://www.wired.com/thisdayintech/2011/03/0302harry-sorref-born-master-lock/" target="_blank">https://www.wired.com/thisdayintech/2011/03/0302harry-sorref-born-master-lock/</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></li>
<li id="fn:7">Harry E. Soref, Archived March 6, 2011, at the Wayback Machine Univ. Wisconsin Milwaukee Sheldon B. Lubar School of Business. <a href="http://www4.uwm.edu/business/corporate/gallery/soref.cfm" target="_blank">http://www4.uwm.edu/business/corporate/gallery/soref.cfm</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></li>
<li id="fn:8">Alfred, Randy (March 2, 2011) [March 2, 2009]. "March 2, 1887: Birth of the Master Locksmith". Wired. Retrieved August 3, 2017. <a href="https://www.wired.com/thisdayintech/2011/03/0302harry-sorref-born-master-lock/" target="_blank">https://www.wired.com/thisdayintech/2011/03/0302harry-sorref-born-master-lock/</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></li>
<li id="fn:9">Master Lock Company History, Funding Universe, <a href="http://www.fundinguniverse.com/company-histories/Master-Lock-Company-Company-History.html" target="_blank">http://www.fundinguniverse.com/company-histories/Master-Lock-Company-Company-History.html</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></li>
<li id="fn:10">Harry E. Soref, Archived March 6, 2011, at the Wayback Machine Univ. Wisconsin Milwaukee Sheldon B. Lubar School of Business. <a href="http://www4.uwm.edu/business/corporate/gallery/soref.cfm" target="_blank">http://www4.uwm.edu/business/corporate/gallery/soref.cfm</a> <a href="#fnref:10" class="footnote-back-ref">↩</a></li>
<li id="fn:11">Alfred, Randy (March 2, 2011) [March 2, 2009]. "March 2, 1887: Birth of the Master Locksmith". Wired. Retrieved August 3, 2017. <a href="https://www.wired.com/thisdayintech/2011/03/0302harry-sorref-born-master-lock/" target="_blank">https://www.wired.com/thisdayintech/2011/03/0302harry-sorref-born-master-lock/</a> <a href="#fnref:11" class="footnote-back-ref">↩</a></li>
<li id="fn:12">Alfred, Randy (March 2, 2011) [March 2, 2009]. "March 2, 1887: Birth of the Master Locksmith". Wired. Retrieved August 3, 2017. <a href="https://www.wired.com/thisdayintech/2011/03/0302harry-sorref-born-master-lock/" target="_blank">https://www.wired.com/thisdayintech/2011/03/0302harry-sorref-born-master-lock/</a> <a href="#fnref:12" class="footnote-back-ref">↩</a></li>
<li id="fn:13">Hutzel, T.; Lippert, D. (2014). Bringing Jobs Back to the USA: Rebuilding America's Manufacturing through Reshoring. CRC Press. p. 59. ISBN 9781482282528. Retrieved February 23, 2017. <a href="9781482282528" target="_blank">9781482282528</a> <a href="#fnref:13" class="footnote-back-ref">↩</a></li>
<li id="fn:14">Alfred, Randy (March 2, 2011) [March 2, 2009]. "March 2, 1887: Birth of the Master Locksmith". Wired. Retrieved August 3, 2017. <a href="https://www.wired.com/thisdayintech/2011/03/0302harry-sorref-born-master-lock/" target="_blank">https://www.wired.com/thisdayintech/2011/03/0302harry-sorref-born-master-lock/</a> <a href="#fnref:14" class="footnote-back-ref">↩</a></li>
<li id="fn:15">Master Lock Company History, Funding Universe, <a href="http://www.fundinguniverse.com/company-histories/Master-Lock-Company-Company-History.html" target="_blank">http://www.fundinguniverse.com/company-histories/Master-Lock-Company-Company-History.html</a> <a href="#fnref:15" class="footnote-back-ref">↩</a></li>
<li id="fn:16">Blankenhorn, Dana, Advertising During the Super Bowl: A Mixed Bag, ClickZ Marketing News & Expert Advice, January 23, 2001. <a href="http://www.clickz.com/experts/archives/ebiz/ebiz_report/article.php/835901" target="_blank">http://www.clickz.com/experts/archives/ebiz/ebiz_report/article.php/835901</a> <a href="#fnref:16" class="footnote-back-ref">↩</a></li>
<li id="fn:17">Christopher, Alistair, Blink Of An Ad, Time, August 3, 1998. <a href="https://web.archive.org/web/20050111025136/http://www.time.com/time/archive/preview/0,10987,988820,00.html" target="_blank">https://web.archive.org/web/20050111025136/http://www.time.com/time/archive/preview/0,10987,988820,00.html</a> <a href="#fnref:17" class="footnote-back-ref">↩</a></li>
<li id="fn:18">Schmid, John (January 1, 2011). "Master Lock reassessing China: Milwaukee-based company finds it can compete better from U.S. soil". Milwaukee Journal Sentinel. Archived from the original on January 5, 2011. <a href="https://web.archive.org/web/20110105171005/http://www.jsonline.com/business/112759524.html" target="_blank">https://web.archive.org/web/20110105171005/http://www.jsonline.com/business/112759524.html</a> <a href="#fnref:18" class="footnote-back-ref">↩</a></li>
<li id="fn:19">Ahmed, Beenish, Some Jobs Finally Return at Master Lock, United Auto Workers, January 24, 2011. <a href="https://web.archive.org/web/20111009022710/http://www.uaw.org/articles/some-jobs-finally-return-master-lock" target="_blank">https://web.archive.org/web/20111009022710/http://www.uaw.org/articles/some-jobs-finally-return-master-lock</a> <a href="#fnref:19" class="footnote-back-ref">↩</a></li>
<li id="fn:20">Schmid, John (January 1, 2011). "Master Lock reassessing China: Milwaukee-based company finds it can compete better from U.S. soil". Milwaukee Journal Sentinel. Archived from the original on January 5, 2011. <a href="https://web.archive.org/web/20110105171005/http://www.jsonline.com/business/112759524.html" target="_blank">https://web.archive.org/web/20110105171005/http://www.jsonline.com/business/112759524.html</a> <a href="#fnref:20" class="footnote-back-ref">↩</a></li>
<li id="fn:21">Ahmed, Beenish, Some Jobs Finally Return at Master Lock, United Auto Workers, January 24, 2011. <a href="https://web.archive.org/web/20111009022710/http://www.uaw.org/articles/some-jobs-finally-return-master-lock" target="_blank">https://web.archive.org/web/20111009022710/http://www.uaw.org/articles/some-jobs-finally-return-master-lock</a> <a href="#fnref:21" class="footnote-back-ref">↩</a></li>
<li id="fn:22">Kaufman, Dan (September 3, 2024). "How NAFTA Broke American Politics". The New York Times. Retrieved September 3, 2024. <a href="https://www.nytimes.com/2024/09/03/magazine/nafta-tarriffs-economy-trump-kamala-harris.html" target="_blank">https://www.nytimes.com/2024/09/03/magazine/nafta-tarriffs-economy-trump-kamala-harris.html</a> <a href="#fnref:22" class="footnote-back-ref">↩</a></li>
<li id="fn:23">Schmid, John (January 1, 2011). "Master Lock reassessing China: Milwaukee-based company finds it can compete better from U.S. soil". Milwaukee Journal Sentinel. Archived from the original on January 5, 2011. <a href="https://web.archive.org/web/20110105171005/http://www.jsonline.com/business/112759524.html" target="_blank">https://web.archive.org/web/20110105171005/http://www.jsonline.com/business/112759524.html</a> <a href="#fnref:23" class="footnote-back-ref">↩</a></li>
<li id="fn:24">Kaufman, Dan (September 3, 2024). "How NAFTA Broke American Politics". The New York Times. Retrieved September 3, 2024. <a href="https://www.nytimes.com/2024/09/03/magazine/nafta-tarriffs-economy-trump-kamala-harris.html" target="_blank">https://www.nytimes.com/2024/09/03/magazine/nafta-tarriffs-economy-trump-kamala-harris.html</a> <a href="#fnref:24" class="footnote-back-ref">↩</a></li>
<li id="fn:25">Lidwell, W.; Manacsa, G. (2009). Deconstructing Product Design: Exploring the Form, Function, Usability, Sustainability, and Commercial Success of 100 Amazing Produ. Rockport Publishers. p. 188. ISBN 9781616736026. Retrieved February 23, 2017. <a href="9781616736026" target="_blank">9781616736026</a> <a href="#fnref:25" class="footnote-back-ref">↩</a></li>
<li id="fn:26">Cheryl Dangel Cullen, L.H. Design Secrets : Product 2. Rockport Publishers. p. 126. ISBN 9781610596572. Retrieved February 23, 2017. <a href="9781610596572" target="_blank">9781610596572</a> <a href="#fnref:26" class="footnote-back-ref">↩</a></li>
<li id="fn:27">"History of American Lock". American Lock. Archived from the original on May 10, 2010. Retrieved May 5, 2019. <a href="https://web.archive.org/web/20100510212958/http://www.americanlock.com/the_american_lock_advantage/history_of_american_lock.jsp" target="_blank">https://web.archive.org/web/20100510212958/http://www.americanlock.com/the_american_lock_advantage/history_of_american_lock.jsp</a> <a href="#fnref:27" class="footnote-back-ref">↩</a></li>
<li id="fn:28">"Password Manager for iPhone, Android & Desktop | Master Lock Vault". masterlockvault.com. Retrieved February 23, 2017. <a href="https://www.masterlockvault.com/" target="_blank">https://www.masterlockvault.com/</a> <a href="#fnref:28" class="footnote-back-ref">↩</a></li>
<li id="fn:29">"milwaukee/print-edition/2011/11/11/master-lock-to-benefit-from-spinoff". bizjournals.com. Retrieved February 23, 2017. <a href="http://www.bizjournals.com/milwaukee/print-edition/2011/11/11/master-lock-to-benefit-from-spinoff.html" target="_blank">http://www.bizjournals.com/milwaukee/print-edition/2011/11/11/master-lock-to-benefit-from-spinoff.html</a> <a href="#fnref:29" class="footnote-back-ref">↩</a></li>
<li id="fn:30">Schmid, John (January 1, 2011). "Master Lock reassessing China: Milwaukee-based company finds it can compete better from U.S. soil". Milwaukee Journal Sentinel. Archived from the original on January 5, 2011. <a href="https://web.archive.org/web/20110105171005/http://www.jsonline.com/business/112759524.html" target="_blank">https://web.archive.org/web/20110105171005/http://www.jsonline.com/business/112759524.html</a> <a href="#fnref:30" class="footnote-back-ref">↩</a></li>
<li id="fn:31">Ahmed, Beenish, Some Jobs Finally Return at Master Lock, United Auto Workers, January 24, 2011. <a href="https://web.archive.org/web/20111009022710/http://www.uaw.org/articles/some-jobs-finally-return-master-lock" target="_blank">https://web.archive.org/web/20111009022710/http://www.uaw.org/articles/some-jobs-finally-return-master-lock</a> <a href="#fnref:31" class="footnote-back-ref">↩</a></li>
<li id="fn:32">Schmid, John (January 1, 2011). "Master Lock reassessing China: Milwaukee-based company finds it can compete better from U.S. soil". Milwaukee Journal Sentinel. Archived from the original on January 5, 2011. <a href="https://web.archive.org/web/20110105171005/http://www.jsonline.com/business/112759524.html" target="_blank">https://web.archive.org/web/20110105171005/http://www.jsonline.com/business/112759524.html</a> <a href="#fnref:32" class="footnote-back-ref">↩</a></li>
<li id="fn:33">Schmid, John (January 1, 2011). "Master Lock reassessing China: Milwaukee-based company finds it can compete better from U.S. soil". Milwaukee Journal Sentinel. Archived from the original on January 5, 2011. <a href="https://web.archive.org/web/20110105171005/http://www.jsonline.com/business/112759524.html" target="_blank">https://web.archive.org/web/20110105171005/http://www.jsonline.com/business/112759524.html</a> <a href="#fnref:33" class="footnote-back-ref">↩</a></li>
<li id="fn:34">Ahmed, Beenish, Local 469 workers have right combination for more jobs at Master Lock: "Re-sourced" work from China returns to Milwaukee plant, United Auto Workers Solidarity, Mar./Apr. 2011. <a href="https://web.archive.org/web/20110709052828/http://www.uaw.org/story/local-469-workers-have-right-combination-more-jobs-master-lock" target="_blank">https://web.archive.org/web/20110709052828/http://www.uaw.org/story/local-469-workers-have-right-combination-more-jobs-master-lock</a> <a href="#fnref:34" class="footnote-back-ref">↩</a></li>
<li id="fn:35">Garcia, Jon, Obama Trip to Lock Factory Evokes Smelly High School Gym Memories, ABC News, February 15, 2012. <a href="https://abcnews.go.com/blogs/politics/2012/02/trip-to-lock-factory-evokes-smelly-high-school-gym-memories-for-obama/" target="_blank">https://abcnews.go.com/blogs/politics/2012/02/trip-to-lock-factory-evokes-smelly-high-school-gym-memories-for-obama/</a> <a href="#fnref:35" class="footnote-back-ref">↩</a></li>
<li id="fn:36">Garcia, Jon, Obama Trip to Lock Factory Evokes Smelly High School Gym Memories, ABC News, February 15, 2012. <a href="https://abcnews.go.com/blogs/politics/2012/02/trip-to-lock-factory-evokes-smelly-high-school-gym-memories-for-obama/" target="_blank">https://abcnews.go.com/blogs/politics/2012/02/trip-to-lock-factory-evokes-smelly-high-school-gym-memories-for-obama/</a> <a href="#fnref:36" class="footnote-back-ref">↩</a></li>
<li id="fn:37">Master dialSpeed 1500EDBX Padlock Review, Gadget Review, August 23, 2012. <a href="http://www.gadgetreview.com/2012/08/masterlock-dialspeed-1500edbx-padlock-review.html" target="_blank">http://www.gadgetreview.com/2012/08/masterlock-dialspeed-1500edbx-padlock-review.html</a> <a href="#fnref:37" class="footnote-back-ref">↩</a></li>
<li id="fn:38">Master dialSpeed 1500EDBX Padlock Review, Gadget Review, August 23, 2012. <a href="http://www.gadgetreview.com/2012/08/masterlock-dialspeed-1500edbx-padlock-review.html" target="_blank">http://www.gadgetreview.com/2012/08/masterlock-dialspeed-1500edbx-padlock-review.html</a> <a href="#fnref:38" class="footnote-back-ref">↩</a></li>
<li id="fn:39">"Sentry Safe sold to Master Lock for $117.5M". democratandchronicle.com. Retrieved February 23, 2017. <a href="http://www.democratandchronicle.com/story/money/business/2014/07/30/sentry-safe-sold-master-lock-m/13383199/" target="_blank">http://www.democratandchronicle.com/story/money/business/2014/07/30/sentry-safe-sold-master-lock-m/13383199/</a> <a href="#fnref:39" class="footnote-back-ref">↩</a></li>
<li id="fn:40">Bentley, Drake; Torres, Ricardo; Groth, Alex. "Master Lock's Milwaukee plant once employed more than 1,000 workers. Now it's closing for good". Milwaukee Journal Sentinel. Retrieved September 3, 2024. <a href="https://www.jsonline.com/story/money/business/2023/05/24/master-lock-to-close-milwaukee-plant-in-2024-report-says/70254974007/" target="_blank">https://www.jsonline.com/story/money/business/2023/05/24/master-lock-to-close-milwaukee-plant-in-2024-report-says/70254974007/</a> <a href="#fnref:40" class="footnote-back-ref">↩</a></li>
<li id="fn:41">Kaufman, Dan (September 3, 2024). "How NAFTA Broke American Politics". The New York Times. Retrieved September 3, 2024. <a href="https://www.nytimes.com/2024/09/03/magazine/nafta-tarriffs-economy-trump-kamala-harris.html" target="_blank">https://www.nytimes.com/2024/09/03/magazine/nafta-tarriffs-economy-trump-kamala-harris.html</a> <a href="#fnref:41" class="footnote-back-ref">↩</a></li>
<li id="fn:42">Goldbeck, Madison (August 21, 2023). "Master Lock to lay off 300+ workers beginning in November, full shutdown in March 2024". WTMJ-TV. Retrieved August 22, 2023. <a href="https://www.tmj4.com/news/local-news/master-lock-to-lay-off-300-workers-beginning-in-november-full-shutdown-in-march-2024" target="_blank">https://www.tmj4.com/news/local-news/master-lock-to-lay-off-300-workers-beginning-in-november-full-shutdown-in-march-2024</a> <a href="#fnref:42" class="footnote-back-ref">↩</a></li>
<li id="fn:43">Dickison, Dan (2006). Powerboat Reports Guide to Powerboat Gear: Take the Guesswork Out of Gear Buying. ISBN 9781592280698. Archived from the original on July 2, 2015. Retrieved July 1, 2015. <a href="9781592280698" target="_blank">9781592280698</a> <a href="#fnref:43" class="footnote-back-ref">↩</a></li>
<li id="fn:44">"Master Lock | May 29, 2015 | Safety+Health Magazine". safetyandhealthmagazine.com. Retrieved February 23, 2017. <a href="http://www.safetyandhealthmagazine.com/articles/12391-master-lock" target="_blank">http://www.safetyandhealthmagazine.com/articles/12391-master-lock</a> <a href="#fnref:44" class="footnote-back-ref">↩</a></li>
<li id="fn:45">Ollam, Deviant (2012). Practical Lock Picking: A Physical Penetration Tester's Training Guide (2nd ed.). Amsterdam: Syngress/Elsevier. p. 167. ISBN 978-1-59749-990-3. OCLC 808340808. <a href="978-1-59749-990-3" target="_blank">978-1-59749-990-3</a> <a href="#fnref:45" class="footnote-back-ref">↩</a></li>
</ol>

Master Lock open-in-new

Master Lock