FR716006A - Membrane for reproducing or recording sounds - Google Patents

Membrane for reproducing or recording sounds

Info

Publication number
FR716006A
FR716006A FR716006DA FR716006A FR 716006 A FR716006 A FR 716006A FR 716006D A FR716006D A FR 716006DA FR 716006 A FR716006 A FR 716006A
Authority
FR
France
Prior art keywords
reproducing
membrane
recording sounds
sounds
recording
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
Ernst Oscar Persson
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 FR716006A publication Critical patent/FR716006A/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR716006D 1931-04-25 1931-04-25 Membrane for reproducing or recording sounds Expired FR716006A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR716006T 1931-04-25

Publications (1)

Publication Number Publication Date
FR716006A true FR716006A (en) 1931-12-14

Family

ID=9089269

Family Applications (1)

Application Number Title Priority Date Filing Date
FR716006D Expired FR716006A (en) 1931-04-25 1931-04-25 Membrane for reproducing or recording sounds

Country Status (1)

Country Link
FR (1) FR716006A (en)

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