FR739249A - Multiple detonation alarm device - Google Patents

Multiple detonation alarm device

Info

Publication number
FR739249A
FR739249A FR739249DA FR739249A FR 739249 A FR739249 A FR 739249A FR 739249D A FR739249D A FR 739249DA FR 739249 A FR739249 A FR 739249A
Authority
FR
France
Prior art keywords
alarm device
multiple detonation
detonation
alarm
detonation alarm
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 Caudy
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 FR739249A publication Critical patent/FR739249A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/14—Audible signalling systems; Audible personal calling systems using explosives

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR739249D 1932-06-29 1932-06-29 Multiple detonation alarm device Expired FR739249A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR739249T 1932-06-29

Publications (1)

Publication Number Publication Date
FR739249A true FR739249A (en) 1933-01-06

Family

ID=9132649

Family Applications (1)

Application Number Title Priority Date Filing Date
FR739249D Expired FR739249A (en) 1932-06-29 1932-06-29 Multiple detonation alarm device

Country Status (1)

Country Link
FR (1) FR739249A (en)

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