FR799725A - Perfectionnement aux haut-parleurs - Google Patents

Perfectionnement aux haut-parleurs

Info

Publication number: FR799725A
Authority: FR; France
Prior art keywords: speaker training; speaker; training
Prior art date: 1935-03-25
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

Inventor

Eugene Mercier

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.)

1935-03-25

Filing date

1935-03-25

Publication date

1936-06-18

1935-03-25 Application filed filed Critical

1936-06-18 Application granted granted Critical

1936-06-18 Publication of FR799725A publication Critical patent/FR799725A/fr

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)

FR799725D 1935-03-25 1935-03-25 Perfectionnement aux haut-parleurs Expired FR799725A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR799725T		1935-03-25

Publications (1)

Publication Number	Publication Date
FR799725A true FR799725A (fr)	1936-06-18

Family

ID=9236967

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR799725D Expired FR799725A (fr)	1935-03-25	1935-03-25	Perfectionnement aux haut-parleurs

Country Status (1)

Country	Link
FR (1)	FR799725A (fr)

1935
- 1935-03-25 FR FR799725D patent/FR799725A/fr not_active Expired

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