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Binary switch lock
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Patent number 4,647,734
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Issue date Mar 3, 1987
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Hudson Lock, Inc.
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Merrill A. Dana
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H01 - BASIC ELECTRIC ELEMENTS
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Sliding bolt locking device
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Patent number 4,641,506
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Issue date Feb 10, 1987
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Hudson Lock, Inc.
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James E. Boucher
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Flush mount lock assembly
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Patent number 4,578,968
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Issue date Apr 1, 1986
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Hudson Lock, Inc.
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Roland A. Messier
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Garage door lock
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Patent number 4,295,016
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Issue date Oct 13, 1981
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Hudson Lock, Inc.
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John H. Cantlin
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H01 - BASIC ELECTRIC ELEMENTS
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-
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Key controlled security apparatus
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Patent number 4,057,987
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Issue date Nov 15, 1977
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Hudson Lock, Inc.
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George P. Patriquin
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Plunger lock
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Patent number 4,009,599
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Issue date Mar 1, 1977
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Hudson Lock, Inc.
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George P. Patriquin
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Automatic key duplicating apparatus
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Patent number 3,978,764
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Issue date Sep 7, 1976
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Hudson Lock, Inc.
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George P. Patriquin
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Key controlled security apparatus
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Patent number 3,973,421
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Issue date Aug 10, 1976
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Hudson Lock, Inc.
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George P. Patriquin
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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