AT294460B - Rechengerät - Google Patents
RechengerätInfo
- Publication number
- AT294460B AT294460B AT162569A AT162569A AT294460B AT 294460 B AT294460 B AT 294460B AT 162569 A AT162569 A AT 162569A AT 162569 A AT162569 A AT 162569A AT 294460 B AT294460 B AT 294460B
- Authority
- AT
- Austria
- Prior art keywords
- computing device
- computing
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
- G06C1/00—Computing aids in which the computing members form at least part of the displayed result and are manipulated directly by hand, e.g. abacuses or pocket adding devices
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Toys (AREA)
- Medicinal Preparation (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8868/68A GB1235923A (en) | 1968-02-23 | 1968-02-23 | Calculating instrument |
Publications (1)
Publication Number | Publication Date |
---|---|
AT294460B true AT294460B (de) | 1971-11-25 |
Family
ID=9860819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT162569A AT294460B (de) | 1968-02-23 | 1969-02-18 | Rechengerät |
Country Status (8)
Country | Link |
---|---|
US (1) | US3526973A (de) |
AT (1) | AT294460B (de) |
BE (1) | BE728662A (de) |
CH (1) | CH482256A (de) |
DE (1) | DE1908563A1 (de) |
FR (1) | FR2002480A1 (de) |
GB (1) | GB1235923A (de) |
IE (1) | IE32966B1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3937929A (en) * | 1973-06-18 | 1976-02-10 | Peter Knauer | Method for identifying selected inventory items and reading the sum of their values |
US3871114A (en) * | 1974-05-17 | 1975-03-18 | Joseph Honig | Device for teaching the addition of fractions |
US4354842A (en) * | 1981-05-28 | 1982-10-19 | Baldwin, Stoddard & Co. | System for utilizing interactive blocks to teach arithmetic |
GB2227862B (en) * | 1988-12-14 | 1993-06-02 | Martin Gaskell | An operations processor |
US5545042A (en) * | 1992-10-20 | 1996-08-13 | Barrows; Irvin R. | Learning board in combination with solution lists |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2899757A (en) * | 1959-08-18 | Add-up block toy for teaching arithmetic | ||
US1183570A (en) * | 1915-11-02 | 1916-05-16 | John Kneeshaw | Educational appliance. |
US1594376A (en) * | 1924-05-24 | 1926-08-03 | Passmore Arthur Augustine | Device for teaching numbers in combination, analysis, factors, and multiples |
US2486260A (en) * | 1945-10-31 | 1949-10-25 | Clifford C Church | Educational appliance |
US3410002A (en) * | 1966-10-24 | 1968-11-12 | Eric H. Mulholland | Educational aid for teaching mathematics |
-
1968
- 1968-02-23 GB GB8868/68A patent/GB1235923A/en not_active Expired
-
1969
- 1969-02-17 IE IE205/69A patent/IE32966B1/xx unknown
- 1969-02-18 AT AT162569A patent/AT294460B/de not_active IP Right Cessation
- 1969-02-18 US US800212A patent/US3526973A/en not_active Expired - Lifetime
- 1969-02-19 BE BE728662D patent/BE728662A/xx unknown
- 1969-02-19 CH CH249769A patent/CH482256A/de not_active IP Right Cessation
- 1969-02-20 DE DE19691908563 patent/DE1908563A1/de active Pending
- 1969-02-21 FR FR6904415A patent/FR2002480A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
US3526973A (en) | 1970-09-08 |
GB1235923A (en) | 1971-06-16 |
BE728662A (de) | 1969-08-01 |
IE32966L (en) | 1969-08-23 |
IE32966B1 (en) | 1974-02-06 |
CH482256A (de) | 1969-11-30 |
FR2002480A1 (de) | 1969-10-17 |
DE1908563A1 (de) | 1970-08-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ELJ | Ceased due to non-payment of the annual fee |