FR768582A - Lamp for acoustic inscriptions - Google Patents
Lamp for acoustic inscriptionsInfo
- Publication number
- FR768582A FR768582A FR768582DA FR768582A FR 768582 A FR768582 A FR 768582A FR 768582D A FR768582D A FR 768582DA FR 768582 A FR768582 A FR 768582A
- Authority
- FR
- France
- Prior art keywords
- inscriptions
- acoustic
- lamp
- acoustic inscriptions
- 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
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE768582X | 1933-02-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR768582A true FR768582A (en) | 1934-08-08 |
Family
ID=6673756
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR768582D Expired FR768582A (en) | 1933-02-13 | 1934-02-13 | Lamp for acoustic inscriptions |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR768582A (en) |
-
1934
- 1934-02-13 FR FR768582D patent/FR768582A/en not_active Expired
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