JPS58186Y2 - 計算練習機 - Google Patents
計算練習機Info
- Publication number
- JPS58186Y2 JPS58186Y2 JP1979141520U JP14152079U JPS58186Y2 JP S58186 Y2 JPS58186 Y2 JP S58186Y2 JP 1979141520 U JP1979141520 U JP 1979141520U JP 14152079 U JP14152079 U JP 14152079U JP S58186 Y2 JPS58186 Y2 JP S58186Y2
- Authority
- JP
- Japan
- Prior art keywords
- drum
- switch
- answer
- keyboard
- calculation
- 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
Landscapes
- Electrically Operated Instructional Devices (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1979141520U JPS58186Y2 (ja) | 1979-10-12 | 1979-10-12 | 計算練習機 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1979141520U JPS58186Y2 (ja) | 1979-10-12 | 1979-10-12 | 計算練習機 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5660962U JPS5660962U (enrdf_load_stackoverflow) | 1981-05-23 |
JPS58186Y2 true JPS58186Y2 (ja) | 1983-01-05 |
Family
ID=29372844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1979141520U Expired JPS58186Y2 (ja) | 1979-10-12 | 1979-10-12 | 計算練習機 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58186Y2 (enrdf_load_stackoverflow) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS552630B2 (enrdf_load_stackoverflow) * | 1972-06-30 | 1980-01-21 | ||
JPS5913635Y2 (ja) * | 1977-02-21 | 1984-04-23 | シャープ株式会社 | 計算練習機 |
-
1979
- 1979-10-12 JP JP1979141520U patent/JPS58186Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5660962U (enrdf_load_stackoverflow) | 1981-05-23 |
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