FR2156733A1 - - Google Patents
Info
- Publication number
- FR2156733A1 FR2156733A1 FR7236592A FR7236592A FR2156733A1 FR 2156733 A1 FR2156733 A1 FR 2156733A1 FR 7236592 A FR7236592 A FR 7236592A FR 7236592 A FR7236592 A FR 7236592A FR 2156733 A1 FR2156733 A1 FR 2156733A1
- 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.)
- Withdrawn
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
- G11B3/44—Styli, e.g. sapphire, diamond
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4855271 | 1971-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2156733A1 true FR2156733A1 (https=) | 1973-06-01 |
Family
ID=10449015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7236592A Withdrawn FR2156733A1 (https=) | 1971-10-19 | 1972-10-16 |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE2243176A1 (https=) |
| FR (1) | FR2156733A1 (https=) |
-
1972
- 1972-09-01 DE DE19722243176 patent/DE2243176A1/de active Pending
- 1972-10-16 FR FR7236592A patent/FR2156733A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE2243176A1 (de) | 1973-04-26 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |