FR793945A - Loudspeaker enhancements - Google Patents

Loudspeaker enhancements

Info

Publication number
FR793945A
FR793945A FR793945DA FR793945A FR 793945 A FR793945 A FR 793945A FR 793945D A FR793945D A FR 793945DA FR 793945 A FR793945 A FR 793945A
Authority
FR
France
Prior art keywords
enhancements
loudspeaker
loudspeaker enhancements
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)
Inventor
Charles Boutelleau
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 FR793945A publication Critical patent/FR793945A/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
    • H04R1/42—Combinations of transducers with fluid-pressure or other non-electrical amplifying means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR793945D 1934-11-12 1934-11-12 Loudspeaker enhancements Expired FR793945A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR793945T 1934-11-12

Publications (1)

Publication Number Publication Date
FR793945A true FR793945A (en) 1936-02-04

Family

ID=9233813

Family Applications (1)

Application Number Title Priority Date Filing Date
FR793945D Expired FR793945A (en) 1934-11-12 1934-11-12 Loudspeaker enhancements

Country Status (1)

Country Link
FR (1) FR793945A (en)

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