FR581425A - - Google Patents
Info
- Publication number
- FR581425A FR581425A FR581425DA FR581425A FR 581425 A FR581425 A FR 581425A FR 581425D A FR581425D A FR 581425DA FR 581425 A FR581425 A FR 581425A
- Authority
- FR
- France
- 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
Links
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
- G11B3/04—Multiple, convertible, or alternative transducing arrangements
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR581425A true FR581425A (en) | 1924-11-28 |
Family
ID=1539638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR581425D Expired FR581425A (en) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR581425A (en) |
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0
- FR FR581425D patent/FR581425A/fr not_active Expired