FR1042161A - Microphone development - Google Patents

Microphone development

Info

Publication number
FR1042161A
FR1042161A FR1042161DA FR1042161A FR 1042161 A FR1042161 A FR 1042161A FR 1042161D A FR1042161D A FR 1042161DA FR 1042161 A FR1042161 A FR 1042161A
Authority
FR
France
Prior art keywords
microphone
development
microphone development
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
Paul Bouyer
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 FR1042161A publication Critical patent/FR1042161A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems
    • H04R27/04—Electric megaphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR1042161D 1951-09-13 1951-09-13 Microphone development Expired FR1042161A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1042161T 1951-09-13

Publications (1)

Publication Number Publication Date
FR1042161A true FR1042161A (en) 1953-10-29

Family

ID=9589878

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1042161D Expired FR1042161A (en) 1951-09-13 1951-09-13 Microphone development

Country Status (1)

Country Link
FR (1) FR1042161A (en)

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