FR793377A - Loudspeaker enhancements - Google Patents

Loudspeaker enhancements

Info

Publication number
FR793377A
FR793377A FR793377DA FR793377A FR 793377 A FR793377 A FR 793377A FR 793377D A FR793377D A FR 793377DA FR 793377 A FR793377 A FR 793377A
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 FR793377A publication Critical patent/FR793377A/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
FR793377D 1934-10-29 1934-10-29 Loudspeaker enhancements Expired FR793377A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR793377T 1934-10-29

Publications (1)

Publication Number Publication Date
FR793377A true FR793377A (en) 1936-01-23

Family

ID=9233511

Family Applications (1)

Application Number Title Priority Date Filing Date
FR793377D Expired FR793377A (en) 1934-10-29 1934-10-29 Loudspeaker enhancements

Country Status (1)

Country Link
FR (1) FR793377A (en)

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