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Corner bolt locking system
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Patent number 8,276,527
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Issue date Oct 2, 2012
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Prosteel Security Products, Inc.
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Richard E. Stepp
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Securing bolt door lock
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Patent number 7,648,180
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Issue date Jan 19, 2010
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Robert W. Petry
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Door locking system
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Patent number 7,634,928
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Issue date Dec 22, 2009
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Harry Hunt
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Door lock
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Patent number 4,067,212
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Issue date Jan 10, 1978
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Arthur Vorob
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2807957
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Patent number 2,807,957
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Issue date Oct 1, 1957
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B66 - HOISTING LIFTING HAULING
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2766610
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Patent number 2,766,610
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Issue date Oct 16, 1956
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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2001403
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Patent number 2,001,403
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Issue date May 14, 1935
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1996376
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Patent number 1,996,376
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Issue date Apr 2, 1935
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1634933
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Patent number 1,634,933
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Issue date Jul 5, 1927
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1058861
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Patent number 1,058,861
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Issue date Apr 15, 1913
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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1038815
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Patent number 1,038,815
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Issue date Sep 17, 1912
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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621122
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Patent number 621,122
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Issue date Mar 14, 1899
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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398609
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Patent number 398,609
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Issue date Feb 26, 1889
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES