BE453664A - - Google Patents
Info
- Publication number
- BE453664A BE453664A BE453664A BE453664A BE453664A BE 453664 A BE453664 A BE 453664A BE 453664 A BE453664 A BE 453664A BE 453664 A BE453664 A BE 453664A BE 453664 A BE453664 A BE 453664A
- 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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE900386X | 1942-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE453664A true BE453664A (pm) |
Family
ID=6852584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE453664A BE453664A (pm) | 1942-12-21 | 1943-12-21 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE453664A (pm) |
| FR (1) | FR900386A (pm) |
-
1943
- 1943-12-06 FR FR900386D patent/FR900386A/fr not_active Expired
- 1943-12-21 BE BE453664A patent/BE453664A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR900386A (fr) | 1945-06-27 |