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FR622806A - Perfectionnements aux diaphragmes destinés aux machines parlantes et similaires - Google Patents

Perfectionnements aux diaphragmes destinés aux machines parlantes et similaires

Info

Publication number
FR622806A
FR622806A FR622806DA FR622806A FR 622806 A FR622806 A FR 622806A FR 622806D A FR622806D A FR 622806DA FR 622806 A FR622806 A FR 622806A
Authority
FR
France
Prior art keywords
diaphragms
speaking machines
speaking
machines
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.)
COLUMBIA GRAPHOPHONE CO Ltd
Original Assignee
COLUMBIA GRAPHOPHONE CO Ltd
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 COLUMBIA GRAPHOPHONE CO Ltd filed Critical COLUMBIA GRAPHOPHONE CO Ltd
Application granted granted Critical
Publication of FR622806A publication Critical patent/FR622806A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR622806D 1925-10-27 1926-10-07 Perfectionnements aux diaphragmes destinés aux machines parlantes et similaires Expired FR622806A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB622806X 1925-10-27

Publications (1)

Publication Number Publication Date
FR622806A true FR622806A (fr) 1927-06-08

Family

ID=10488014

Family Applications (1)

Application Number Title Priority Date Filing Date
FR622806D Expired FR622806A (fr) 1925-10-27 1926-10-07 Perfectionnements aux diaphragmes destinés aux machines parlantes et similaires

Country Status (1)

Country Link
FR (1) FR622806A (fr)

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