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Multistage lock apparatus
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Patent number 7,975,517
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Issue date Jul 12, 2011
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Wen-Kuei Liu
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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-
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Programmable cylinder lock system
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Patent number 6,983,630
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Issue date Jan 10, 2006
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Kaba Ilco Corp.
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Charles W. Eden, Jr.
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Manually operated coded switch
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Patent number 4,111,017
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Issue date Sep 5, 1978
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The United States of America as represented by the United States Department o...
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Jon H. Barnette
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H01 - BASIC ELECTRIC ELEMENTS
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3731505
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Patent number 3,731,505
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Issue date May 8, 1973
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2852929
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Patent number 2,852,929
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Issue date Sep 23, 1958
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2706393
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Patent number 2,706,393
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Issue date Apr 19, 1955
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2621508
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Patent number 2,621,508
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Issue date Dec 16, 1952
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2545395
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Patent number 2,545,395
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Issue date Mar 13, 1951
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H01 - BASIC ELECTRIC ELEMENTS
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2512028
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Patent number 2,512,028
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Issue date Jun 20, 1950
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2446732
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Patent number 2,446,732
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Issue date Aug 10, 1948
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2439140
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Patent number 2,439,140
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Issue date Apr 6, 1948
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2407362
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Patent number 2,407,362
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Issue date Sep 10, 1946
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2325349
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Patent number 2,325,349
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Issue date Jul 27, 1943
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2319931
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Patent number 2,319,931
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Issue date May 25, 1943
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B60 - VEHICLES IN GENERAL
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2216356
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Patent number 2,216,356
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Issue date Oct 1, 1940
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2201494
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Patent number 2,201,494
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Issue date May 21, 1940
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2087568
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Patent number 2,087,568
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Issue date Jul 20, 1937
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2040120
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Patent number 2,040,120
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Issue date May 12, 1936
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2023137
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Patent number 2,023,137
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Issue date Dec 3, 1935
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1977471
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Patent number 1,977,471
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Issue date Oct 16, 1934
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1956069
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Patent number 1,956,069
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Issue date Apr 24, 1934
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1857399
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Patent number 1,857,399
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Issue date May 10, 1932
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1737477
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Patent number 1,737,477
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Issue date Nov 26, 1929
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1710242
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Patent number 1,710,242
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Issue date Apr 23, 1929
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B60 - VEHICLES IN GENERAL
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1621148
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Patent number 1,621,148
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Issue date Mar 15, 1927
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1598506
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Patent number 1,598,506
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Issue date Aug 31, 1926
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B60 - VEHICLES IN GENERAL
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1548311
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Patent number 1,548,311
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Issue date Aug 4, 1925
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1546333
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Patent number 1,546,333
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Issue date Jul 14, 1925
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES