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Publication of FR1590812ApublicationCriticalpatent/FR1590812A/fr
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
E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
E06B9/08—Roll-type closures
E06B9/11—Roller shutters
E06B9/13—Roller shutters with closing members of one piece, e.g. of corrugated sheet metal