FR970002A - Safety device for door locks - Google Patents

Safety device for door locks

Info

Publication number
FR970002A
FR970002A FR970002DA FR970002A FR 970002 A FR970002 A FR 970002A FR 970002D A FR970002D A FR 970002DA FR 970002 A FR970002 A FR 970002A
Authority
FR
France
Prior art keywords
safety device
door locks
locks
door
safety
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
Fernand-Auguste Degrenne
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 FR970002A publication Critical patent/FR970002A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/14—Closures or guards for keyholes
    • E05B17/142—Closures or guards for keyholes with key-operated locks, e.g. padlocks
FR970002D 1948-08-04 1948-08-04 Safety device for door locks Expired FR970002A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR970002T 1948-08-04

Publications (1)

Publication Number Publication Date
FR970002A true FR970002A (en) 1950-12-28

Family

ID=9502366

Family Applications (1)

Application Number Title Priority Date Filing Date
FR970002D Expired FR970002A (en) 1948-08-04 1948-08-04 Safety device for door locks

Country Status (1)

Country Link
FR (1) FR970002A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785188A (en) * 1972-03-21 1974-01-15 Modern Annuciation Inc Magnetic controlled door lock
EP0057318A1 (en) * 1981-01-16 1982-08-11 THE GENERAL ELECTRIC COMPANY, p.l.c. Security mechanisms
WO1996031674A1 (en) * 1995-04-01 1996-10-10 Rittal-Werk Rudolf Loh Gmbh & Co. Kg Catch for a door, especially a switchboard door

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785188A (en) * 1972-03-21 1974-01-15 Modern Annuciation Inc Magnetic controlled door lock
EP0057318A1 (en) * 1981-01-16 1982-08-11 THE GENERAL ELECTRIC COMPANY, p.l.c. Security mechanisms
WO1996031674A1 (en) * 1995-04-01 1996-10-10 Rittal-Werk Rudolf Loh Gmbh & Co. Kg Catch for a door, especially a switchboard door

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