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E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
E06B7/00—Special arrangements or measures in connection with doors or windows
E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
E06B7/08—Louvre doors, windows or grilles
E06B7/082—Louvre doors, windows or grilles with rigid or slidable lamellae
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FR1101228D1954-03-171954-03-17Perfectionnements à la fabrication des persiennes
ExpiredFR1101228A
(fr)