FR692577A - Perfectionnements aux aimants - Google Patents

Perfectionnements aux aimants

Info

Publication number: FR692577A
Authority: FR; France
Prior art keywords: enhancements; magnet; magnet enhancements
Prior art date: 1929-03-25
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

Paul Gustavus Adolphus H Voigt

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.)

1929-03-25

Filing date

1930-03-22

Publication date

1930-11-07

1930-03-22 Application filed filed Critical

1930-11-07 Application granted granted Critical

1930-11-07 Publication of FR692577A publication Critical patent/FR692577A/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
- H04R9/02—Details
- H04R9/025—Magnetic circuit

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Details Of Audible-Bandwidth Transducers (AREA)

FR692577D 1929-03-25 1930-03-22 Perfectionnements aux aimants Expired FR692577A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB949929A GB331209A (en)	1929-03-25	1929-03-25	Improvements in magnets

Publications (1)

Publication Number	Publication Date
FR692577A true FR692577A (fr)	1930-11-07

Family

ID=9873127

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR692577D Expired FR692577A (fr)	1929-03-25	1930-03-22	Perfectionnements aux aimants

Country Status (2)

Country	Link
FR (1)	FR692577A (fr)
GB (1)	GB331209A (fr)

1929
- 1929-03-25 GB GB949929A patent/GB331209A/en not_active Expired
1930
- 1930-03-22 FR FR692577D patent/FR692577A/fr not_active Expired

Also Published As

Publication number	Publication date
GB331209A (en)	1930-06-25

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