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FR970251A - Improvements made to door closers - Google Patents

Improvements made to door closers

Info

Publication number
FR970251A
FR970251A FR970251DA FR970251A FR 970251 A FR970251 A FR 970251A FR 970251D A FR970251D A FR 970251DA FR 970251 A FR970251 A FR 970251A
Authority
FR
France
Prior art keywords
improvements made
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
Ernst Billeter
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 FR970251A publication Critical patent/FR970251A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/12—Special devices controlling the circulation of the liquid, e.g. valve arrangement
FR970251D 1947-08-06 1948-08-06 Improvements made to door closers Expired FR970251A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH970251X 1947-08-06

Publications (1)

Publication Number Publication Date
FR970251A true FR970251A (en) 1951-01-02

Family

ID=4550929

Family Applications (1)

Application Number Title Priority Date Filing Date
FR970251D Expired FR970251A (en) 1947-08-06 1948-08-06 Improvements made to door closers

Country Status (1)

Country Link
FR (1) FR970251A (en)

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