FR2379130B1 - - Google Patents
Info
- Publication number
- FR2379130B1 FR2379130B1 FR7702145A FR7702145A FR2379130B1 FR 2379130 B1 FR2379130 B1 FR 2379130B1 FR 7702145 A FR7702145 A FR 7702145A FR 7702145 A FR7702145 A FR 7702145A FR 2379130 B1 FR2379130 B1 FR 2379130B1
- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06187—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with magnetically detectable marking
- G06K19/06196—Constructional details
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/02—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the selection of materials, e.g. to avoid wear during transport through the machine
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/842—Coating a support with a liquid magnetic dispersion
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Credit Cards Or The Like (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7702145A FR2379130A1 (fr) | 1977-01-26 | 1977-01-26 | Perfectionnement aux procedes d'enregistrement magnetique inalterable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7702145A FR2379130A1 (fr) | 1977-01-26 | 1977-01-26 | Perfectionnement aux procedes d'enregistrement magnetique inalterable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2379130A1 FR2379130A1 (fr) | 1978-08-25 |
| FR2379130B1 true FR2379130B1 (pt) | 1980-02-15 |
Family
ID=9185917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7702145A Granted FR2379130A1 (fr) | 1977-01-26 | 1977-01-26 | Perfectionnement aux procedes d'enregistrement magnetique inalterable |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2379130A1 (pt) |
-
1977
- 1977-01-26 FR FR7702145A patent/FR2379130A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2379130A1 (fr) | 1978-08-25 |