FR1272969A - Nouvel avertisseur ultra-sonore - Google Patents

Nouvel avertisseur ultra-sonore

Info

Publication number
FR1272969A
FR1272969A FR836371A FR836371A FR1272969A FR 1272969 A FR1272969 A FR 1272969A FR 836371 A FR836371 A FR 836371A FR 836371 A FR836371 A FR 836371A FR 1272969 A FR1272969 A FR 1272969A
Authority
FR
France
Prior art keywords
sound alarm
new ultra
ultra
new
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
FR836371A
Other languages
English (en)
Inventor
Gerard Jean Zephinie
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
Priority to FR836371A priority Critical patent/FR1272969A/fr
Application granted granted Critical
Publication of FR1272969A publication Critical patent/FR1272969A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B1/00—Systems for signalling characterised solely by the form of transmission of the signal
    • G08B1/08—Systems for signalling characterised solely by the form of transmission of the signal using electric transmission ; transformation of alarm signals to electrical signals from a different medium, e.g. transmission of an electric alarm signal upon detection of an audible alarm signal

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR836371A 1960-08-22 1960-08-22 Nouvel avertisseur ultra-sonore Expired FR1272969A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR836371A FR1272969A (fr) 1960-08-22 1960-08-22 Nouvel avertisseur ultra-sonore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR836371A FR1272969A (fr) 1960-08-22 1960-08-22 Nouvel avertisseur ultra-sonore

Publications (1)

Publication Number Publication Date
FR1272969A true FR1272969A (fr) 1961-10-06

Family

ID=8737745

Family Applications (1)

Application Number Title Priority Date Filing Date
FR836371A Expired FR1272969A (fr) 1960-08-22 1960-08-22 Nouvel avertisseur ultra-sonore

Country Status (1)

Country Link
FR (1) FR1272969A (fr)

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