DE3856058D1 - Insbesondere für Schüler der ersten Klassen bestimmte Rechenmaschine für pädagogische Zwecke - Google Patents
Insbesondere für Schüler der ersten Klassen bestimmte Rechenmaschine für pädagogische ZweckeInfo
- Publication number
- DE3856058D1 DE3856058D1 DE3856058T DE3856058T DE3856058D1 DE 3856058 D1 DE3856058 D1 DE 3856058D1 DE 3856058 T DE3856058 T DE 3856058T DE 3856058 T DE3856058 T DE 3856058T DE 3856058 D1 DE3856058 D1 DE 3856058D1
- Authority
- DE
- Germany
- Prior art keywords
- pupils
- grade
- educational purposes
- purposes especially
- calculator
- 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 - Fee Related
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
- G09B19/02—Counting; Calculating
- G09B19/025—Counting; Calculating with electrically operated apparatus or devices
Landscapes
- Business, Economics & Management (AREA)
- Engineering & Computer Science (AREA)
- Entrepreneurship & Innovation (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Calculators And Similar Devices (AREA)
- Electrically Operated Instructional Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8711552A FR2619460B1 (fr) | 1987-08-13 | 1987-08-13 | Machine a calculer pedagogique destinee notamment aux eleves des classes primaires |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3856058D1 true DE3856058D1 (de) | 1997-12-11 |
DE3856058T2 DE3856058T2 (de) | 1998-03-05 |
Family
ID=9354183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3856058T Expired - Fee Related DE3856058T2 (de) | 1987-08-13 | 1988-08-11 | Insbesondere für Schüler der ersten Klassen bestimmte Rechenmaschine für pädagogische Zwecke |
Country Status (4)
Country | Link |
---|---|
US (1) | US4954977A (de) |
EP (1) | EP0303548B1 (de) |
DE (1) | DE3856058T2 (de) |
FR (1) | FR2619460B1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02138653A (ja) * | 1988-11-18 | 1990-05-28 | Sharp Corp | 卓上計算機 |
US5450095A (en) * | 1992-09-30 | 1995-09-12 | Casio Computer Co., Ltd. | Fraction display apparatus capable of displaying fractions in normal form |
US5519646A (en) * | 1993-07-15 | 1996-05-21 | Sharp Kabushiki Kaisha | Calculator with display of processing for mulas as processing progresses |
US5732001A (en) * | 1994-09-13 | 1998-03-24 | Sharp Kabushiki Kaisha | Calculator with stepwise display of linear equations |
GB0018850D0 (en) * | 2000-08-02 | 2000-09-20 | Samson Ilan | Electronic calculators |
US20090155752A1 (en) * | 2002-02-26 | 2009-06-18 | Charles Pillsbury Resor | Non-right justification display system and method for displaying arithmetic equations |
US20030180699A1 (en) * | 2002-02-26 | 2003-09-25 | Resor Charles P. | Electronic learning aid for teaching arithmetic skills |
TWI245532B (en) * | 2003-12-05 | 2005-12-11 | Mediatek Inc | Hand-held electronic device |
CN1300717C (zh) * | 2003-12-25 | 2007-02-14 | 金宝电子工业股份有限公司 | 商值/余数分屏显示的方法及其装置 |
USD792513S1 (en) * | 2010-07-09 | 2017-07-18 | Dynamics Inc. | Display with font |
USD792511S1 (en) * | 2010-07-09 | 2017-07-18 | Dynamics Inc. | Display with font |
USD792512S1 (en) * | 2010-07-09 | 2017-07-18 | Dynamics Inc. | Display with font |
US10559224B2 (en) | 2016-04-21 | 2020-02-11 | Chris Steven Ternoey | Digit card calculator |
US10191886B2 (en) | 2016-04-21 | 2019-01-29 | Chris Steven Ternoey | Gesture controlled calculator |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3787988A (en) * | 1971-12-30 | 1974-01-29 | Asahi Optical Co Ltd | Method and electronic machine for teaching arithmetic computation |
US4225932A (en) * | 1976-01-20 | 1980-09-30 | Canon Kabushiki Kaisha | Instructional calculator |
JPS55118173A (en) * | 1979-03-03 | 1980-09-10 | Canon Inc | Electronic apparatus |
JPS57147768A (en) * | 1981-03-09 | 1982-09-11 | Canon Inc | Electronic calculator |
JPS58213369A (ja) * | 1982-06-05 | 1983-12-12 | Casio Comput Co Ltd | 検算機能付小型電子式計算機 |
US4488250A (en) * | 1982-07-02 | 1984-12-11 | Lipsey William S | Hand-held calculator for performing calculations in feet, inches and fractions |
GB2130782B (en) * | 1982-10-04 | 1986-10-15 | Mitsubishi Electric Corp | Arithmetic teaching device |
US4545022A (en) * | 1983-02-10 | 1985-10-01 | Hughins James T | Fractional calculator |
-
1987
- 1987-08-13 FR FR8711552A patent/FR2619460B1/fr not_active Expired - Fee Related
-
1988
- 1988-08-11 DE DE3856058T patent/DE3856058T2/de not_active Expired - Fee Related
- 1988-08-11 EP EP88402099A patent/EP0303548B1/de not_active Expired - Lifetime
- 1988-08-12 US US07/231,733 patent/US4954977A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2619460A1 (fr) | 1989-02-17 |
FR2619460B1 (fr) | 1994-03-25 |
EP0303548B1 (de) | 1997-11-05 |
DE3856058T2 (de) | 1998-03-05 |
EP0303548A1 (de) | 1989-02-15 |
US4954977A (en) | 1990-09-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |