FR648609A - - Google Patents
Info
- Publication number
- FR648609A FR648609A FR648609DA FR648609A FR 648609 A FR648609 A FR 648609A FR 648609D A FR648609D A FR 648609DA FR 648609 A FR648609 A FR 648609A
- 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
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR648609A true FR648609A (ru) | 1928-12-12 |
Family
ID=1542872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR648609D Expired FR648609A (ru) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR648609A (ru) |
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0
- FR FR648609D patent/FR648609A/fr not_active Expired