FR666121A - Perfectionnement aux phonographes - Google Patents

Perfectionnement aux phonographes

Info

Publication number: FR666121A
Authority: FR; France
Prior art keywords: phonographs; improvement
Prior art date: 1928-12-20
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

Joseph Gouverneur

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.)

1928-12-20

Filing date

1928-12-20

Publication date

1929-09-27

1928-12-20 Application filed filed Critical

1929-09-27 Application granted granted Critical

1929-09-27 Publication of FR666121A publication Critical patent/FR666121A/fr

Status Expired legal-status Critical Current

Classifications

- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
- G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card

FR666121D 1928-12-20 1928-12-20 Perfectionnement aux phonographes Expired FR666121A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR666121T		1928-12-20

Publications (1)

Publication Number	Publication Date
FR666121A true FR666121A (fr)	1929-09-27

Family

ID=9013700

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR666121D Expired FR666121A (fr)	1928-12-20	1928-12-20	Perfectionnement aux phonographes

Country Status (1)

Country	Link
FR (1)	FR666121A (fr)

1928
- 1928-12-20 FR FR666121D patent/FR666121A/fr not_active Expired

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