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Venetian blind
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Patent number 5,582,226
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Issue date Dec 10, 1996
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Newell Operating Company
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Robert J. Voss
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Adjustable window covering cord lock
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Patent number 4,719,956
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Issue date Jan 19, 1988
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Beatrice Companies
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Louis G. Valle
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Venetian blind drive control
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Patent number 4,406,319
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Issue date Sep 27, 1983
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Beatrice Foods Co.
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Claude M. McNiel
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS