FR742014A - - Google Patents
Info
- Publication number
- FR742014A FR742014A FR742014DA FR742014A FR 742014 A FR742014 A FR 742014A FR 742014D A FR742014D A FR 742014DA FR 742014 A FR742014 A FR 742014A
- 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
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR742014A true FR742014A (da) | 1933-02-24 |
Family
ID=1546473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR742014D Expired FR742014A (da) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR742014A (da) |
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0
- FR FR742014D patent/FR742014A/fr not_active Expired