FR690316A - Device for activating an automatic signal by intruding an unwanted item in stores and the like - Google Patents

Device for activating an automatic signal by intruding an unwanted item in stores and the like

Info

Publication number
FR690316A
FR690316A FR690316DA FR690316A FR 690316 A FR690316 A FR 690316A FR 690316D A FR690316D A FR 690316DA FR 690316 A FR690316 A FR 690316A
Authority
FR
France
Prior art keywords
intruding
activating
stores
automatic signal
unwanted item
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
Heinrich Mussbickel Iii
Philipp Jacob Bretz
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 FR690316A publication Critical patent/FR690316A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B15/00—Identifying, scaring or incapacitating burglars, thieves or intruders, e.g. by explosives

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR690316D 1930-02-20 1930-02-20 Device for activating an automatic signal by intruding an unwanted item in stores and the like Expired FR690316A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR690316T 1930-02-20

Publications (1)

Publication Number Publication Date
FR690316A true FR690316A (en) 1930-09-18

Family

ID=9028898

Family Applications (1)

Application Number Title Priority Date Filing Date
FR690316D Expired FR690316A (en) 1930-02-20 1930-02-20 Device for activating an automatic signal by intruding an unwanted item in stores and the like

Country Status (1)

Country Link
FR (1) FR690316A (en)

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