BE332450A - - Google Patents

Info

Publication number
BE332450A
BE332450A BE332450DA BE332450A BE 332450 A BE332450 A BE 332450A BE 332450D A BE332450D A BE 332450DA BE 332450 A BE332450 A BE 332450A
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 BE332450A publication Critical patent/BE332450A/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)
  • Telephone Set Structure (AREA)
BE332450D 1925-03-12 BE332450A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR249062X 1925-03-12

Publications (1)

Publication Number Publication Date
BE332450A true BE332450A (enrdf_load_stackoverflow)

Family

ID=8883909

Family Applications (1)

Application Number Title Priority Date Filing Date
BE332450D BE332450A (enrdf_load_stackoverflow) 1925-03-12

Country Status (3)

Country Link
BE (1) BE332450A (enrdf_load_stackoverflow)
DE (1) DE441058C (enrdf_load_stackoverflow)
GB (1) GB249062A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3032138A (en) * 1957-11-25 1962-05-01 Hawley Products Co Acoustical devices
JP6364900B2 (ja) * 2013-09-12 2018-08-01 株式会社リコー エネルギー変換装置及びスピーカー構造

Also Published As

Publication number Publication date
GB249062A (en) 1926-04-15
DE441058C (de) 1927-02-25

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