FR648220A - Improvements to informant locks - Google Patents

Improvements to informant locks

Info

Publication number
FR648220A
FR648220A FR648220DA FR648220A FR 648220 A FR648220 A FR 648220A FR 648220D A FR648220D A FR 648220DA FR 648220 A FR648220 A FR 648220A
Authority
FR
France
Prior art keywords
informant
locks
informant locks
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
Marcel Ritter
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 FR648220A publication Critical patent/FR648220A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B45/00—Alarm locks
    • E05B45/06—Electric alarm locks
FR648220D 1928-02-04 1928-02-04 Improvements to informant locks Expired FR648220A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR648220T 1928-02-04

Publications (1)

Publication Number Publication Date
FR648220A true FR648220A (en) 1928-12-06

Family

ID=9002541

Family Applications (1)

Application Number Title Priority Date Filing Date
FR648220D Expired FR648220A (en) 1928-02-04 1928-02-04 Improvements to informant locks

Country Status (1)

Country Link
FR (1) FR648220A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992019831A1 (en) * 1991-04-25 1992-11-12 Chiang Sheng Tseng An improved locking device and alarm system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992019831A1 (en) * 1991-04-25 1992-11-12 Chiang Sheng Tseng An improved locking device and alarm system

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