BE647257A - - Google Patents

Info

Publication number
BE647257A
BE647257A BE647257DA BE647257A BE 647257 A BE647257 A BE 647257A BE 647257D A BE647257D A BE 647257DA BE 647257 A BE647257 A BE 647257A
Authority
BE
Belgium
Prior art keywords
cylinder
shaft
cylinders
displacement
shutter
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE647257A publication Critical patent/BE647257A/fr

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68Operating devices or mechanisms, e.g. with electric drive
    • E06B9/74Operating devices or mechanisms, e.g. with electric drive adapted for selective electrical or manual operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Transmission Devices (AREA)
BE647257D BE647257A (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
BE647257A true BE647257A (enrdf_load_stackoverflow)

Family

ID=205516

Family Applications (1)

Application Number Title Priority Date Filing Date
BE647257D BE647257A (enrdf_load_stackoverflow)

Country Status (1)

Country Link
BE (1) BE647257A (enrdf_load_stackoverflow)

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