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Lightweight piano hinge
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Patent number 6,061,874
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Issue date May 16, 2000
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Stanley R. Tatara
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Fire rated, hinged, swinging door
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Patent number 5,943,824
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Issue date Aug 31, 1999
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Stanley R. Tatara
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Spring loaded hinge
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Patent number 4,823,437
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Issue date Apr 25, 1989
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Stanley R. Tatara
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES