NL30952C - - Google Patents

Info

Publication number
NL30952C
NL30952C NL30952DA NL30952C NL 30952 C NL30952 C NL 30952C NL 30952D A NL30952D A NL 30952DA NL 30952 C NL30952 C NL 30952C
Authority
NL
Netherlands
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 NL30952C publication Critical patent/NL30952C/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
    • H04R9/04—Construction, mounting, or centering of coil

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
NL30952D 1930-04-03 NL30952C (cg-RX-API-DMAC7.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL713126X 1930-04-03

Publications (1)

Publication Number Publication Date
NL30952C true NL30952C (cg-RX-API-DMAC7.html)

Family

ID=19814868

Family Applications (1)

Application Number Title Priority Date Filing Date
NL30952D NL30952C (cg-RX-API-DMAC7.html) 1930-04-03

Country Status (2)

Country Link
FR (1) FR713126A (cg-RX-API-DMAC7.html)
NL (1) NL30952C (cg-RX-API-DMAC7.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3328537A (en) * 1964-01-09 1967-06-27 Hecht William High frequency sound translating device
US3983337A (en) * 1973-06-21 1976-09-28 Babbco, Ltd. Broad-band acoustic speaker
CN2523162Y (zh) * 2002-01-28 2002-11-27 斯贝克电子（嘉善）有限公司 能防止散圈的音圈

Also Published As

Publication number Publication date
FR713126A (fr) 1931-10-22

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