FR688364A - Radio-diffuseur - Google Patents

Radio-diffuseur

Info

Publication number
FR688364A
FR688364A FR688364DA FR688364A FR 688364 A FR688364 A FR 688364A FR 688364D A FR688364D A FR 688364DA FR 688364 A FR688364 A FR 688364A
Authority
FR
France
Prior art keywords
radio broadcaster
broadcaster
radio
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)
Inventor
Etienne Boucher
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 FR688364A publication Critical patent/FR688364A/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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/021—Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR688364D 1929-01-17 1929-01-17 Radio-diffuseur Expired FR688364A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR688364T 1929-01-17

Publications (1)

Publication Number Publication Date
FR688364A true FR688364A (fr) 1930-08-22

Family

ID=9026683

Family Applications (1)

Application Number Title Priority Date Filing Date
FR688364D Expired FR688364A (fr) 1929-01-17 1929-01-17 Radio-diffuseur

Country Status (1)

Country Link
FR (1) FR688364A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE925653C (de) * 1937-10-22 1955-03-28 Telefunken Gmbh Gehaeuse fuer elektrodynamische Konuslautsprecher mit tief abgestimmter Membran
FR2542549A1 (fr) * 1983-03-09 1984-09-14 Lemaitre Guy Diffuseur acoustique en angle plan

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE925653C (de) * 1937-10-22 1955-03-28 Telefunken Gmbh Gehaeuse fuer elektrodynamische Konuslautsprecher mit tief abgestimmter Membran
FR2542549A1 (fr) * 1983-03-09 1984-09-14 Lemaitre Guy Diffuseur acoustique en angle plan

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