FR797568A - Microphone refinements - Google Patents

Microphone refinements

Info

Publication number
FR797568A
FR797568A FR797568DA FR797568A FR 797568 A FR797568 A FR 797568A FR 797568D A FR797568D A FR 797568DA FR 797568 A FR797568 A FR 797568A
Authority
FR
France
Prior art keywords
refinements
microphone
microphone refinements
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
Jean Eppler
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 FR797568A publication Critical patent/FR797568A/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR797568D 1935-09-19 1935-09-19 Microphone refinements Expired FR797568A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR797568T 1935-09-19

Publications (1)

Publication Number Publication Date
FR797568A true FR797568A (en) 1936-04-29

Family

ID=9235770

Family Applications (1)

Application Number Title Priority Date Filing Date
FR797568D Expired FR797568A (en) 1935-09-19 1935-09-19 Microphone refinements

Country Status (1)

Country Link
FR (1) FR797568A (en)

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