DK122195B - Tastatur til en regnemaskine. - Google Patents
Tastatur til en regnemaskine.Info
- Publication number
- DK122195B DK122195B DK471269AA DK471269A DK122195B DK 122195 B DK122195 B DK 122195B DK 471269A A DK471269A A DK 471269AA DK 471269 A DK471269 A DK 471269A DK 122195 B DK122195 B DK 122195B
- Authority
- DK
- Denmark
- Prior art keywords
- calculator
- keyboard
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
- G06C7/00—Input mechanisms
- G06C7/02—Keyboards
- G06C7/08—Keyboards with one set of keys for all denominations, e.g. ten-key board
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Input From Keyboards Or The Like (AREA)
- Warehouses Or Storage Devices (AREA)
- Transmission Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1320768A CH496993A (fr) | 1968-09-03 | 1968-09-03 | Dispositif d'introduction de valeurs dans une machine à calculer, à clavier réduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK122195B true DK122195B (da) | 1972-01-31 |
Family
ID=4390333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK471269AA DK122195B (da) | 1968-09-03 | 1969-09-03 | Tastatur til en regnemaskine. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3598971A (da) |
| CH (1) | CH496993A (da) |
| DK (1) | DK122195B (da) |
| FR (1) | FR2017235A1 (da) |
| GB (1) | GB1279655A (da) |
| SE (1) | SE349411B (da) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2697552A (en) * | 1954-12-21 | Buzzi | ||
| US3152759A (en) * | 1964-10-13 | Interlocked open keyboards with electric restoring | ||
| US2975971A (en) * | 1954-11-13 | 1961-03-21 | Oerlikon Buehrle Ag | Calculating machine with digit keys and function control keys |
| US3017463A (en) * | 1959-04-10 | 1962-01-16 | Bendix Corp | Keyboard apparatus |
| US3169701A (en) * | 1961-01-03 | 1965-02-16 | Sperry Rand Corp | Interchangeable key blank and key button combination |
| US3430226A (en) * | 1965-05-05 | 1969-02-25 | Sperry Rand Corp | Calculators |
-
1968
- 1968-09-03 CH CH1320768A patent/CH496993A/fr not_active IP Right Cessation
-
1969
- 1969-08-25 FR FR6929087A patent/FR2017235A1/fr not_active Withdrawn
- 1969-08-26 US US853106A patent/US3598971A/en not_active Expired - Lifetime
- 1969-08-27 SE SE11890/69A patent/SE349411B/xx unknown
- 1969-08-29 GB GB43092/69A patent/GB1279655A/en not_active Expired
- 1969-09-03 DK DK471269AA patent/DK122195B/da unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2017235A1 (da) | 1970-05-22 |
| GB1279655A (en) | 1972-06-28 |
| US3598971A (en) | 1971-08-10 |
| SE349411B (da) | 1972-09-25 |
| DE1944145B2 (de) | 1972-08-24 |
| CH496993A (fr) | 1970-09-30 |
| DE1944145A1 (de) | 1970-05-21 |
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