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Decorative ceiling or wall
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Patent number 4,463,536
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Issue date Aug 7, 1984
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Levolor Lorentzen, Inc.
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Joseph A. Anderle
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E04 - BUILDING
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Frame for a venetian blind
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Patent number 4,341,254
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Issue date Jul 27, 1982
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Levolor Lorentzen, Inc.
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Maurice Schaller
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Ceiling panel clip
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Patent number 4,328,653
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Issue date May 11, 1982
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Levolor Lorentzen, Inc.
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Joseph A. Anderle
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E04 - BUILDING
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Support for ceiling panels
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Patent number 4,309,858
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Issue date Jan 12, 1982
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Levolor Lorentzen, Inc.
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Joseph A. Anderle
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E04 - BUILDING
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