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Quick-action rolling shutter door
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Patent number 7,111,661
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Issue date Sep 26, 2006
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Rite-Hite Holding Corporation
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Guido Laugenbach
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Quick-action rolling shutter door
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Patent number 6,659,158
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Issue date Dec 9, 2003
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Rite-Hite Holding Corporation
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Guido Laugenbach
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS