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Shade for non-rectangular opening
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Patent number 5,092,383
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Issue date Mar 3, 1992
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BW-USA, Inc.
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Remmelt C. Niemeijer
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Spacer devices
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Patent number 4,880,044
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Issue date Nov 14, 1989
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BW-USA, Inc.
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Ren Judkins
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS