Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE1965R0030561external-prioritypatent/DE1919446U/de
Application filedfiledCritical
Publication of BE680574ApublicationCriticalpatent/BE680574A/xx
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
E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
E06B9/68—Operating devices or mechanisms, e.g. with electric drive
Landscapes
Engineering & Computer Science
(AREA)
Structural Engineering
(AREA)
Architecture
(AREA)
Civil Engineering
(AREA)
Operating, Guiding And Securing Of Roll- Type Closing Members
(AREA)