BE386404A - - Google Patents

Info

Publication number
BE386404A
BE386404A BE386404DA BE386404A BE 386404 A BE386404 A BE 386404A BE 386404D A BE386404D A BE 386404DA BE 386404 A BE386404 A BE 386404A
Authority
BE
Belgium
Application number
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.)
Publication of BE386404A publication Critical patent/BE386404A/xx

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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
BE386404D 1931-02-12 BE386404A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US515190A US1951531A (en) 1931-02-12 1931-02-12 Sound-translating device

Publications (1)

Publication Number Publication Date
BE386404A true BE386404A (zh)

Family

ID=24050315

Family Applications (2)

Application Number Title Priority Date Filing Date
BE401119D BE401119A (zh) 1931-02-12
BE386404D BE386404A (zh) 1931-02-12

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BE401119D BE401119A (zh) 1931-02-12

Country Status (2)

Country Link
US (1) US1951531A (zh)
BE (2) BE386404A (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2537723A (en) * 1946-11-22 1951-01-09 Truvox Engineering Company Ltd Electromagnetic transducer
NL71197C (zh) * 1947-06-18
US2761912A (en) * 1951-05-31 1956-09-04 Martin L Touger Sound translating apparatus
US3358089A (en) * 1964-06-10 1967-12-12 Gen Electric Magnet assembly
GB2050755B (en) * 1979-04-10 1983-06-29 Suwa Seikosha Kk Dynamic loudspeaker
US7266211B2 (en) * 2003-08-07 2007-09-04 Matsushita Electric Industrial Co., Ltd. Speaker grill

Also Published As

Publication number Publication date
US1951531A (en) 1934-03-20
BE401119A (zh)

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