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Side folding closure
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Patent number 4,386,645
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Issue date Jun 7, 1983
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Cornell Iron Works, Inc.
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James E. Dever
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Closure
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Patent number 4,120,340
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Issue date Oct 17, 1978
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Cornell Iron Works, Inc.
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John A. Stascavage
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS