FR32677E - Système de diaphragme acoustique - Google Patents

Système de diaphragme acoustique

Info

Publication number
FR32677E
FR32677E FR32677DA FR32677E FR 32677 E FR32677 E FR 32677E FR 32677D A FR32677D A FR 32677DA FR 32677 E FR32677 E FR 32677E
Authority
FR
France
Prior art keywords
acoustic diaphragm
diaphragm system
acoustic
diaphragm
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)
French (fr)
Inventor
Louis Lumiere
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 filed Critical
Application granted granted Critical
Publication of FR32677E publication Critical patent/FR32677E/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; 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)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR32677D 1925-08-01 1926-05-31 Système de diaphragme acoustique Expired FR32677E (fr)

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
FR32677E true FR32677E (fr) 1928-02-15

Family

ID=27244982

Family Applications (1)

Application Number Title Priority Date Filing Date
FR32677D Expired FR32677E (fr) 1925-08-01 1926-05-31 Système de diaphragme acoustique

Country Status (4)

Country Link
BE (1) BE335771A (enExample)
CH (1) CH121143A (enExample)
FR (1) FR32677E (enExample)
GB (1) GB271831A (enExample)

Also Published As

Publication number Publication date
BE335771A (enExample)
GB271831A (en) 1927-09-29
CH121143A (fr) 1927-07-01

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