FR818761A - Improvements to electrodynamic loudspeakers - Google Patents

Improvements to electrodynamic loudspeakers

Info

Publication number: FR818761A
Authority: FR; France
Prior art keywords: electrodynamic loudspeakers; electrodynamic; loudspeakers
Prior art date: 1937-03-05
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

Elie Marcel Scemama D Gialluly

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.)

1937-03-05

Filing date

1937-03-05

Publication date

1937-10-04

1937-03-05 Application filed filed Critical

1937-10-04 Application granted granted Critical

1937-10-04 Publication of FR818761A publication Critical patent/FR818761A/en

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
- H04R9/02—Details
- H04R9/025—Magnetic circuit

Landscapes

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

FR818761D 1937-03-05 1937-03-05 Improvements to electrodynamic loudspeakers Expired FR818761A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR818761T		1937-03-05

Publications (1)

Publication Number	Publication Date
FR818761A true FR818761A (en)	1937-10-04

Family

ID=9269038

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR818761D Expired FR818761A (en)	1937-03-05	1937-03-05	Improvements to electrodynamic loudspeakers

Country Status (1)

Country	Link
FR (1)	FR818761A (en)

1937
- 1937-03-05 FR FR818761D patent/FR818761A/en not_active Expired

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