FR355509A - Electric warning system indicating attempts to open the locks - Google Patents

Electric warning system indicating attempts to open the locks

Info

Publication number
FR355509A
FR355509A FR355509DA FR355509A FR 355509 A FR355509 A FR 355509A FR 355509D A FR355509D A FR 355509DA FR 355509 A FR355509 A FR 355509A
Authority
FR
France
Prior art keywords
locks
open
warning system
system indicating
electric warning
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
Louis Clavier
Eugene Burtin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EUGENE BURTIN
LOUIS CLAVIER
Original Assignee
EUGENE BURTIN
LOUIS CLAVIER
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 by EUGENE BURTIN, LOUIS CLAVIER filed Critical EUGENE BURTIN
Application granted granted Critical
Publication of FR355509A publication Critical patent/FR355509A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR355509D 1905-04-10 1905-04-10 Electric warning system indicating attempts to open the locks Expired FR355509A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR355509T 1905-04-10

Publications (1)

Publication Number Publication Date
FR355509A true FR355509A (en) 1905-11-06

Family

ID=1403539

Family Applications (1)

Application Number Title Priority Date Filing Date
FR355509D Expired FR355509A (en) 1905-04-10 1905-04-10 Electric warning system indicating attempts to open the locks

Country Status (1)

Country Link
FR (1) FR355509A (en)

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