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FR419817A - Membrane acoustique - Google Patents

Membrane acoustique

Info

Publication number
FR419817A
FR419817A FR419817DA FR419817A FR 419817 A FR419817 A FR 419817A FR 419817D A FR419817D A FR 419817DA FR 419817 A FR419817 A FR 419817A
Authority
FR
France
Prior art keywords
acoustic membrane
acoustic
membrane
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
Louis Lumiere
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Application granted granted Critical
Publication of FR419817A publication Critical patent/FR419817A/fr
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR419817D 1909-11-04 1909-11-04 Membrane acoustique Expired FR419817A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR419817T 1909-11-04

Publications (1)

Publication Number Publication Date
FR419817A true FR419817A (fr) 1911-01-16

Family

ID=1463010

Family Applications (1)

Application Number Title Priority Date Filing Date
FR419817D Expired FR419817A (fr) 1909-11-04 1909-11-04 Membrane acoustique

Country Status (1)

Country Link
FR (1) FR419817A (fr)

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