FR844667A - Improvements to door closers - Google Patents

Improvements to door closers

Info

Publication number
FR844667A
FR844667A FR844667DA FR844667A FR 844667 A FR844667 A FR 844667A FR 844667D A FR844667D A FR 844667DA FR 844667 A FR844667 A FR 844667A
Authority
FR
France
Prior art keywords
door closers
closers
door
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
John Henry Darby
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
Application filed filed Critical
Application granted granted Critical
Publication of FR844667A publication Critical patent/FR844667A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/18—Locks or fastenings with special structural characteristics with arrangements independent of the locking mechanism for retaining the bolt or latch in the retracted position
    • E05B63/20—Locks or fastenings with special structural characteristics with arrangements independent of the locking mechanism for retaining the bolt or latch in the retracted position released automatically when the wing is closed

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
FR844667D 1938-10-13 1938-10-13 Improvements to door closers Expired FR844667A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR844667T 1938-10-13

Publications (1)

Publication Number Publication Date
FR844667A true FR844667A (en) 1939-07-31

Family

ID=9312509

Family Applications (1)

Application Number Title Priority Date Filing Date
FR844667D Expired FR844667A (en) 1938-10-13 1938-10-13 Improvements to door closers

Country Status (1)

Country Link
FR (1) FR844667A (en)

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