FR939433A - Appareils électro-acoustiques - Google Patents

Appareils électro-acoustiques

Info

Publication number
FR939433A
FR939433A FR939433DA FR939433A FR 939433 A FR939433 A FR 939433A FR 939433D A FR939433D A FR 939433DA FR 939433 A FR939433 A FR 939433A
Authority
FR
France
Prior art keywords
electro
acoustic devices
acoustic
devices
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
William Donald Cragg
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR939433A publication Critical patent/FR939433A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR939433D 1945-12-11 1946-12-06 Appareils électro-acoustiques Expired FR939433A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB939433X 1945-12-11

Publications (1)

Publication Number Publication Date
FR939433A true FR939433A (fr) 1948-11-15

Family

ID=10748272

Family Applications (1)

Application Number Title Priority Date Filing Date
FR939433D Expired FR939433A (fr) 1945-12-11 1946-12-06 Appareils électro-acoustiques

Country Status (1)

Country Link
FR (1) FR939433A (fr)

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