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Door locking methods and apparatus
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Patent number 4,570,466
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Issue date Feb 18, 1986
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Laser Products Corporation
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John W. Matthews
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1802041
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Patent number 1,802,041
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Issue date Apr 21, 1931
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1597642
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Patent number 1,597,642
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Issue date Aug 24, 1926
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1560596
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Patent number 1,560,596
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Issue date Nov 10, 1925
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1525954
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Patent number 1,525,954
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Issue date Feb 10, 1925
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1497793
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Patent number 1,497,793
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Issue date Jun 17, 1924
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1497810
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Patent number 1,497,810
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Issue date Jun 17, 1924
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1490752
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Patent number 1,490,752
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Issue date Apr 15, 1924
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1489333
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Patent number 1,489,333
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Issue date Apr 8, 1924
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1487469
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Patent number 1,487,469
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Issue date Mar 18, 1924
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1482515
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Patent number 1,482,515
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Issue date Feb 5, 1924
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1472206
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Patent number 1,472,206
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Issue date Oct 30, 1923
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1455583
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Patent number 1,455,583
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Issue date May 15, 1923
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B60 - VEHICLES IN GENERAL
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1452652
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Patent number 1,452,652
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Issue date Apr 24, 1923
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B60 - VEHICLES IN GENERAL
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1438666
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Patent number 1,438,666
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Issue date Dec 12, 1922
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1436525
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Patent number 1,436,525
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Issue date Nov 21, 1922
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B60 - VEHICLES IN GENERAL
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1428963
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Patent number 1,428,963
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Issue date Sep 12, 1922
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B60 - VEHICLES IN GENERAL
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1426977
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Patent number 1,426,977
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Issue date Aug 22, 1922
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1420723
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Patent number 1,420,723
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Issue date Jun 27, 1922
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1417340
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Patent number 1,417,340
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Issue date May 23, 1922
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B60 - VEHICLES IN GENERAL
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1414991
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Patent number 1,414,991
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Issue date May 2, 1922
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B60 - VEHICLES IN GENERAL
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1414192
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Patent number 1,414,192
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Issue date Apr 25, 1922
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1411168
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Patent number 1,411,168
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Issue date Mar 28, 1922
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B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
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1411111
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Patent number 1,411,111
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Issue date Mar 28, 1922
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1410033
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Patent number 1,410,033
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Issue date Mar 21, 1922
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1403783
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Patent number 1,403,783
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Issue date Jan 17, 1922
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B60 - VEHICLES IN GENERAL
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1403256
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Patent number 1,403,256
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Issue date Jan 10, 1922
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1389316
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Patent number 1,389,316
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Issue date Aug 30, 1921
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B60 - VEHICLES IN GENERAL