FR647378A - Detonating warning corner for doors - Google Patents

Detonating warning corner for doors

Info

Publication number
FR647378A
FR647378A FR647378DA FR647378A FR 647378 A FR647378 A FR 647378A FR 647378D A FR647378D A FR 647378DA FR 647378 A FR647378 A FR 647378A
Authority
FR
France
Prior art keywords
detonating
doors
warning
corner
warning corner
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
Firmin Crot
Jean Crot
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 FR647378A publication Critical patent/FR647378A/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
    • G08B13/02—Mechanical actuation
    • G08B13/06—Mechanical actuation by tampering with fastening

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR647378D 1928-01-14 1928-01-14 Detonating warning corner for doors Expired FR647378A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR647378T 1928-01-14

Publications (1)

Publication Number Publication Date
FR647378A true FR647378A (en) 1928-11-23

Family

ID=9002051

Family Applications (1)

Application Number Title Priority Date Filing Date
FR647378D Expired FR647378A (en) 1928-01-14 1928-01-14 Detonating warning corner for doors

Country Status (1)

Country Link
FR (1) FR647378A (en)

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