FR569871A - Modulophone - Google Patents
ModulophoneInfo
- Publication number
- FR569871A FR569871A FR569871DA FR569871A FR 569871 A FR569871 A FR 569871A FR 569871D A FR569871D A FR 569871DA FR 569871 A FR569871 A FR 569871A
- Authority
- FR
- France
- Prior art keywords
- modulophone
- Prior art date
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR569871T | 1923-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR569871A true FR569871A (fr) | 1924-04-18 |
Family
ID=8949474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR569871D Expired FR569871A (fr) | 1923-07-12 | 1923-07-12 | Modulophone |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR569871A (fr) |
-
1923
- 1923-07-12 FR FR569871D patent/FR569871A/fr not_active Expired
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