GB1288994A - - Google Patents
Info
- Publication number
- GB1288994A GB1288994A GB1288994DA GB1288994A GB 1288994 A GB1288994 A GB 1288994A GB 1288994D A GB1288994D A GB 1288994DA GB 1288994 A GB1288994 A GB 1288994A
- Authority
- GB
- United Kingdom
- Prior art keywords
- read
- secured
- store
- face
- magnetic layer
- Prior art date
- 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
- 239000011230 binding agent Substances 0.000 abstract 2
- 239000004020 conductor Substances 0.000 abstract 2
- 239000011888 foil Substances 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 239000003822 epoxy resin Substances 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 abstract 1
- 229920000647 polyepoxide Polymers 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
- G11C17/02—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using magnetic or inductive elements
Landscapes
- Credit Cards Or The Like (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
- Structure Of Printed Boards (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691943394 DE1943394A1 (de) | 1969-08-26 | 1969-08-26 | Festwertspeicher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1288994A true GB1288994A (https=) | 1972-09-13 |
Family
ID=5743837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1288994D Expired GB1288994A (https=) | 1969-08-26 | 1970-08-25 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3683342A (https=) |
| AT (1) | AT307096B (https=) |
| BE (1) | BE755326A (https=) |
| DE (1) | DE1943394A1 (https=) |
| FR (1) | FR2059681A1 (https=) |
| GB (1) | GB1288994A (https=) |
| LU (1) | LU61578A1 (https=) |
| NL (1) | NL7012128A (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0642337Y2 (ja) * | 1984-07-05 | 1994-11-02 | 三菱電機株式会社 | 半導体装置 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6406457A (https=) * | 1963-06-12 | 1964-12-14 | ||
| US3548390A (en) * | 1966-12-14 | 1970-12-15 | Nippon Electric Co | Semi-permanent magnetic memory device |
-
0
- BE BE755326D patent/BE755326A/xx unknown
-
1969
- 1969-08-26 DE DE19691943394 patent/DE1943394A1/de active Pending
-
1970
- 1970-08-17 NL NL7012128A patent/NL7012128A/xx unknown
- 1970-08-18 FR FR7030257A patent/FR2059681A1/fr not_active Withdrawn
- 1970-08-21 US US66029A patent/US3683342A/en not_active Expired - Lifetime
- 1970-08-24 AT AT764970A patent/AT307096B/de not_active IP Right Cessation
- 1970-08-25 GB GB1288994D patent/GB1288994A/en not_active Expired
- 1970-08-25 LU LU61578D patent/LU61578A1/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AT307096B (de) | 1973-05-10 |
| LU61578A1 (https=) | 1971-07-15 |
| BE755326A (fr) | 1971-02-26 |
| NL7012128A (https=) | 1971-03-02 |
| DE1943394A1 (de) | 1971-03-04 |
| US3683342A (en) | 1972-08-08 |
| FR2059681A1 (https=) | 1971-06-04 |
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| GB1288994A (https=) | ||
| GB1234314A (https=) | ||
| GB1282394A (en) | Printed circuit assembly | |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |