BE452810A - - Google Patents
Info
- Publication number
- BE452810A BE452810A BE452810A BE452810A BE452810A BE 452810 A BE452810 A BE 452810A BE 452810 A BE452810 A BE 452810A BE 452810 A BE452810 A BE 452810A BE 452810 A BE452810 A BE 452810A
- Authority
- BE
- Belgium
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
- G11B3/68—Record carriers
- G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
- G11B3/705—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers characterised by the selection of the material only
-
- 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
- G11B3/68—Record carriers
- G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE899054X | 1942-10-30 | ||
| DEA18176D DE915272C (de) | 1943-01-12 | 1943-01-12 | Schallplatte |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE452810A true BE452810A (h) |
Family
ID=25956003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE452810A BE452810A (h) | 1942-10-30 | 1943-10-21 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE452810A (h) |
| FR (1) | FR899054A (h) |
-
1943
- 1943-10-21 FR FR899054D patent/FR899054A/fr not_active Expired
- 1943-10-21 BE BE452810A patent/BE452810A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR899054A (fr) | 1945-05-18 |