![Patents](../graphics/djh_logo.gif)
Patents - Assigned To Surname "Master Lock Co."
Master Lock Co. 1929/06/25 -> 1718606 - > ![](../images/1718606a.jpg)
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Master Lock Co. 1929/06/25 -> D78846 - > ![](../images/D78846a.jpg)
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Master Lock Co. 1932/02/16 -> 1845354 - > ![](../images/1845354a.jpg)
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Master Lock Co. 1933/12/12 -> 1938941 - > ![](../images/1938941a.jpg)
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Master Lock Co. 1935/04/30 -> D95463 - > ![](../images/D95463a.jpg)
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Master Lock Co. 1938/01/11 -> 2105337 - > ![](../images/2105337a.jpg)
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Master Lock Co. 1938/04/12 -> 2113864 - > ![](../images/2113864a.jpg)
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Master Lock Co. 1938/08/16 -> 2127089 - > ![](../images/2127089a.jpg)
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Master Lock Co. 1938/08/16 -> 2127091 - > ![](../images/2127091a.jpg)
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Master Lock Co. 1938/11/15 -> 2136435 - > ![](../images/2136435a.jpg)
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Master Lock Co. 1939/05/30 -> 2160294 - > ![](../images/2160294a.jpg)
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Master Lock Co. 1939/08/15 -> 2169907 - > ![](../images/2169907a.jpg)
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Master Lock Co. 1939/09/19 -> 2173720 - > ![](../images/2173720a.jpg)
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Master Lock Co. 1944/06/27 -> 2352190 - > ![](../images/2352190a.jpg)
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Master Lock Co. 1945/12/18 -> D143245 - > ![](../images/D143245a.jpg)
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Master Lock Co. 1945/12/18 -> D143246 - > ![](../images/D143246a.jpg)
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Master Lock Co. 1949/05/24 -> 2471291 - > ![](../images/2471291a.jpg)
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Master Lock Co. 1949/05/24 -> 2477325 - > ![](../images/2477325a.jpg)
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Master Lock Co. 1949/11/08 -> 2487608 - > ![](../images/2487608a.jpg)
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Master Lock Co. 1958/02/25 -> 2824439 - > ![](../images/2824439a.jpg)
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Master Lock Co. 1958/07/15 -> 2842950 - > ![](../images/2842950a.jpg)
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Master Lock Co. 1958/07/15 -> 2867110 - > ![](../images/2867110a.jpg)
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Master Lock Co. 1959/07/07 -> 2893231 - > ![](../images/2893231a.jpg)
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Master Lock Co. 1959/07/07 -> 2893232 - > ![](../images/2893232a.jpg)
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Master Lock Co. 1968/06/25 -> 3389586 - > ![](../images/3389586a.jpg)
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Master Lock Co. 1969/01/21 -> 3422643 - > ![](../images/3422643a.jpg)
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Master Lock Co. 1969/01/21 -> 3422644 - > ![](../images/3422644a.jpg)
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Master Lock Co. 1969/02/07 -> 3563067 - > ![](../images/3563067a.jpg)
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Master Lock Co. 1969/10/21 -> 3473352 - > ![](../images/3473352a.jpg)
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Master Lock Co. 1969/11/04 -> 3475930 - > ![](../images/3475930a.jpg)
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Master Lock Co. 1976/09/07 -> D241306 - > ![](../images/D241306a.jpg)
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Master Lock Co. 1988/03/15 -> 4730467 - > ![](../images/4730467a.jpg)
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Master Lock Co. 1993/11/30 -> D341766 - > ![](../images/D341766a.jpg)
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Master Lock Co. 1993/12/07 -> D342009 - > ![](../images/D342009a.jpg)
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Master Lock Co. 1993/12/07 -> D342010 - > ![](../images/D342010a.jpg)
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Master Lock Co. 1999/02/23 -> D406043 - > ![](../images/D406043a.jpg)
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Master Lock Co. 2000/04/25 -> D423323 - > ![](../images/D423323a.jpg)
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Master Lock Co. 2000/05/02 -> D423906 - > ![](../images/D423906a.jpg)
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Master Lock Co. 2000/05/02 -> D423907 - > ![](../images/D423907a.jpg)
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Master Lock Co. 2000/05/23 -> D425398 - > ![](../images/D425398a.jpg)
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Master Lock Co. 2000/06/20 -> D426763 - > ![](../images/D426763a.jpg)
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Master Lock Co. 2000/07/04 -> D427503 - > ![](../images/D427503a.jpg)
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Master Lock Co. 2000/10/24 -> D432391 - > ![](../images/D432391a.jpg)
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Master Lock Co. 2001/02/06 -> D437204 - > ![](../images/D437204a.jpg)
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Master Lock Co. 2001/02/20 -> D437768 - > ![](../images/D437768a.jpg)
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Master Lock Co. 2001/04/03 -> D439823 - > ![](../images/D439823a.jpg)
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Master Lock Co. 2002/06/11 -> D458530 - > ![](../images/D458530a.jpg)
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Master Lock Co. 2004/03/23 -> 6708534 - > ![](../images/6708534a.jpg)
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Master Lock Co. 2005/06/14 -> D506122 - > ![](../images/D506122a.jpg)
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Master Lock Co. 2005/06/28 -> D506667 - > ![](../images/D506667a.jpg)
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Master Lock Co. 2005/07/19 -> D507473 - > ![](../images/D507473a.jpg)
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Master Lock Co. 2005/07/19 -> D507474 - > ![](../images/D507474a.jpg)
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Master Lock Co. 2005/12/20 -> D512900 - > ![](../images/D512900a.jpg)
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Master Lock Co. 2006/03/21 -> D517396 - > ![](../images/D517396a.jpg)
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54 Patents Listed