FR637635A - Perfectionnement aux phonographes - Google Patents

Perfectionnement aux phonographes

Info

Publication number: FR637635A
Authority: FR; France
Prior art keywords: phonographs; improvement
Prior art date: 1926-11-16
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

Rene Samuel

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.)

1926-11-16

Filing date

1926-11-16

Publication date

1928-05-04

1926-11-16 Application filed filed Critical

1928-05-04 Application granted granted Critical

1928-05-04 Publication of FR637635A publication Critical patent/FR637635A/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
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/02—Arrangements of heads
- G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers

FR637635D 1926-11-16 1926-11-16 Perfectionnement aux phonographes Expired FR637635A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR637635T		1926-11-16

Publications (1)

Publication Number	Publication Date
FR637635A true FR637635A (fr)	1928-05-04

Family

ID=8995442

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR637635D Expired FR637635A (fr)	1926-11-16	1926-11-16	Perfectionnement aux phonographes

Country Status (1)

Country	Link
FR (1)	FR637635A (fr)

1926
- 1926-11-16 FR FR637635D patent/FR637635A/fr not_active Expired

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