FR648711A - Perfectionnements aux diaphragmes pour instruments acoustiques hauts-parleurs, machines parlantes, etc. - Google Patents

Perfectionnements aux diaphragmes pour instruments acoustiques hauts-parleurs, machines parlantes, etc.

Info

Publication number
FR648711A
FR648711A FR648711DA FR648711A FR 648711 A FR648711 A FR 648711A FR 648711D A FR648711D A FR 648711DA FR 648711 A FR648711 A FR 648711A
Authority
FR
France
Prior art keywords
loudspeakers
diaphragms
acoustic instruments
speaking machines
speaking
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)
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.)
CIE GENERALE DES MACHINES PARL
Original Assignee
CIE GENERALE DES MACHINES PARL
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 CIE GENERALE DES MACHINES PARL filed Critical CIE GENERALE DES MACHINES PARL
Application granted granted Critical
Publication of FR648711A publication Critical patent/FR648711A/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; ELECTRIC HEARING AIDS; 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
    • H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR648711D 1928-02-13 1928-02-13 Perfectionnements aux diaphragmes pour instruments acoustiques hauts-parleurs, machines parlantes, etc. Expired FR648711A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR648711T 1928-02-13

Publications (1)

Publication Number Publication Date
FR648711A true FR648711A (fr) 1928-12-13

Family

ID=9002860

Family Applications (1)

Application Number Title Priority Date Filing Date
FR648711D Expired FR648711A (fr) 1928-02-13 1928-02-13 Perfectionnements aux diaphragmes pour instruments acoustiques hauts-parleurs, machines parlantes, etc.

Country Status (1)

Country Link
FR (1) FR648711A (fr)

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