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Sven A. J. Liljendahl
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D-175 76 Jarfalla, SE
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Patent Grant
Heat-insulating roller-blind
Patent number
4,502,522
Issue date
Mar 5, 1985
Sven A. J. Liljendahl
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS