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Strip curtain
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Patent number 4,552,195
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Issue date Nov 12, 1985
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K. Bratschi, Silent Gliss
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Heinz Durig
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Strip curtain
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Patent number 4,116,257
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Issue date Sep 26, 1978
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Konrad Bratschi
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Strip curtain
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Patent number 4,102,381
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Issue date Jul 25, 1978
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K. Bratschi, Silent Gliss
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Konrad Bratschi
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS