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Window assembly
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Patent number 5,014,466
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Issue date May 14, 1991
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Kurt Winner
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Window sash assembly
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Patent number 4,640,048
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Issue date Feb 3, 1987
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Kurt W. Winner
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Plastic window
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Patent number 4,259,813
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Issue date Apr 7, 1981
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Kurt W. Winner
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS