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Window lock
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Patent number 10,920,468
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Issue date Feb 16, 2021
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Martasz Smith
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Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
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Delayed action door holder
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Patent number 6,497,004
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Issue date Dec 24, 2002
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Richard Armstrong
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Structure of door guard
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Patent number 6,015,173
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Issue date Jan 18, 2000
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Chen Shui Shang
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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3042958
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Patent number 3,042,958
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Issue date Jul 10, 1962
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2652585
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Patent number 2,652,585
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Issue date Sep 22, 1953
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2454414
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Patent number 2,454,414
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Issue date Nov 23, 1948
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2445514
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Patent number 2,445,514
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Issue date Jul 20, 1948
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2140002
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Patent number 2,140,002
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Issue date Dec 13, 1938
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2109228
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Patent number 2,109,228
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Issue date Feb 22, 1938
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2068928
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Patent number 2,068,928
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Issue date Jan 26, 1937
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1621974
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Patent number 1,621,974
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Issue date Mar 22, 1927
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES