FR570032A - Diffuseur de sons - Google Patents

Diffuseur de sons

Info

Publication number
FR570032A
FR570032A FR570032DA FR570032A FR 570032 A FR570032 A FR 570032A FR 570032D A FR570032D A FR 570032DA FR 570032 A FR570032 A FR 570032A
Authority
FR
France
Prior art keywords
sound diffuser
diffuser
sound
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
Marcel Defforge
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 FR570032A publication Critical patent/FR570032A/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
FR570032D 1923-08-23 1923-08-23 Diffuseur de sons Expired FR570032A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR570032T 1923-08-23

Publications (1)

Publication Number Publication Date
FR570032A true FR570032A (fr) 1924-04-22

Family

ID=8949573

Family Applications (1)

Application Number Title Priority Date Filing Date
FR570032D Expired FR570032A (fr) 1923-08-23 1923-08-23 Diffuseur de sons

Country Status (1)

Country Link
FR (1) FR570032A (fr)

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