BE335771A - - Google Patents

Info

Publication number
BE335771A
BE335771A BE335771DA BE335771A BE 335771 A BE335771 A BE 335771A BE 335771D A BE335771D A BE 335771DA BE 335771 A BE335771 A BE 335771A
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 BE335771A publication Critical patent/BE335771A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
BE335771D 1925-08-01 BE335771A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR613906T 1925-08-01
FR31494T 1925-09-28
FR32677T 1926-05-31

Publications (1)

Publication Number Publication Date
BE335771A true BE335771A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=27244982

Family Applications (1)

Application Number Title Priority Date Filing Date
BE335771D BE335771A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1925-08-01

Country Status (4)

Country Link
BE (1) BE335771A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH121143A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR32677E (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB271831A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
FR32677E (fr) 1928-02-15
CH121143A (fr) 1927-07-01
GB271831A (en) 1927-09-29

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