FR779968A - Improvements to acoustic amplifiers - Google Patents

Improvements to acoustic amplifiers

Info

Publication number
FR779968A
FR779968A FR779968DA FR779968A FR 779968 A FR779968 A FR 779968A FR 779968D A FR779968D A FR 779968DA FR 779968 A FR779968 A FR 779968A
Authority
FR
France
Prior art keywords
acoustic amplifiers
amplifiers
acoustic
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
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anciens Etablissements Sautter Harle
Original Assignee
Anciens Etablissements Sautter Harle
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 by Anciens Etablissements Sautter Harle filed Critical Anciens Etablissements Sautter Harle
Application granted granted Critical
Publication of FR779968A publication Critical patent/FR779968A/en
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
    • 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)
FR779968D 1934-01-06 1934-01-06 Improvements to acoustic amplifiers Expired FR779968A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR779968T 1934-01-06

Publications (1)

Publication Number Publication Date
FR779968A true FR779968A (en) 1935-04-17

Family

ID=9203028

Family Applications (1)

Application Number Title Priority Date Filing Date
FR779968D Expired FR779968A (en) 1934-01-06 1934-01-06 Improvements to acoustic amplifiers

Country Status (1)

Country Link
FR (1) FR779968A (en)

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