IT950573B - Schede magnetiche per la raccolta di dati - Google Patents
Schede magnetiche per la raccolta di datiInfo
- Publication number
- IT950573B IT950573B IT4766372A IT4766372A IT950573B IT 950573 B IT950573 B IT 950573B IT 4766372 A IT4766372 A IT 4766372A IT 4766372 A IT4766372 A IT 4766372A IT 950573 B IT950573 B IT 950573B
- Authority
- IT
- Italy
- Prior art keywords
- data collection
- magnetic cards
- cards
- magnetic
- collection
- Prior art date
Links
Classifications
-
- 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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/702—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent
- G11B5/7021—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent containing a polyurethane or a polyisocyanate
- G11B5/7022—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent containing a polyurethane or a polyisocyanate containing mixtures of polyurethanes or polyisocyanates with other polymers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Paints Or Removers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712101490 DE2101490C3 (de) | 1971-01-14 | 1971-01-14 | Magnetkarten für die Datenerfassung |
Publications (1)
Publication Number | Publication Date |
---|---|
IT950573B true IT950573B (it) | 1973-06-20 |
Family
ID=5795805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT4766372A IT950573B (it) | 1971-01-14 | 1972-01-11 | Schede magnetiche per la raccolta di dati |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2101490C3 (it) |
GB (1) | GB1371816A (it) |
IT (1) | IT950573B (it) |
NL (1) | NL7200339A (it) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2255802C3 (de) * | 1972-11-15 | 1981-10-15 | Basf Ag, 6700 Ludwigshafen | Schichtmagnetogrammträger |
US3946206A (en) * | 1974-08-21 | 1976-03-23 | R. D. Products, Inc. | Magnetic-type information card and method and apparatus for encoding and reading |
DE2442762C2 (de) * | 1974-09-06 | 1983-02-24 | Basf Ag, 6700 Ludwigshafen | Schichtmagnetogrammträger mit Polyurethanelastomer-Bindemitteln in der Magnetschicht |
DE29914038U1 (de) * | 1999-08-11 | 1999-11-18 | Ahrens Hans Joachim | Magnetkarte |
-
1971
- 1971-01-14 DE DE19712101490 patent/DE2101490C3/de not_active Expired
-
1972
- 1972-01-10 NL NL7200339A patent/NL7200339A/xx unknown
- 1972-01-11 IT IT4766372A patent/IT950573B/it active
- 1972-01-12 GB GB137472A patent/GB1371816A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1371816A (en) | 1974-10-30 |
DE2101490C3 (de) | 1978-04-13 |
NL7200339A (it) | 1972-07-18 |
DE2101490B2 (de) | 1977-08-18 |
DE2101490A1 (de) | 1972-07-27 |
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