FR666871A - - Google Patents
Info
- Publication number
- FR666871A FR666871A FR666871DA FR666871A FR 666871 A FR666871 A FR 666871A FR 666871D A FR666871D A FR 666871DA FR 666871 A FR666871 A FR 666871A
- 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
- G11B3/44—Styli, e.g. sapphire, diamond
- G11B3/46—Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR666871A true FR666871A (fr) | 1927-10-17 |
Family
ID=1543374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR666871D Expired FR666871A (fr) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR666871A (fr) |
-
0
- FR FR666871D patent/FR666871A/fr not_active Expired