FR769089A - Amplificateur de son - Google Patents

Amplificateur de son

Info

Publication number
FR769089A
FR769089A FR769089DA FR769089A FR 769089 A FR769089 A FR 769089A FR 769089D A FR769089D A FR 769089DA FR 769089 A FR769089 A FR 769089A
Authority
FR
France
Prior art keywords
sound amplifier
amplifier
sound
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
English (en)
Inventor
Bayonne
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 FR769089A publication Critical patent/FR769089A/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)
FR769089D 1933-12-01 1933-12-01 Amplificateur de son Expired FR769089A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR769089T 1933-12-01

Publications (1)

Publication Number Publication Date
FR769089A true FR769089A (fr) 1934-08-18

Family

ID=9184584

Family Applications (1)

Application Number Title Priority Date Filing Date
FR769089D Expired FR769089A (fr) 1933-12-01 1933-12-01 Amplificateur de son

Country Status (1)

Country Link
FR (1) FR769089A (fr)

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