JPS552630B2 - - Google Patents
Info
- Publication number
- JPS552630B2 JPS552630B2 JP6607172A JP6607172A JPS552630B2 JP S552630 B2 JPS552630 B2 JP S552630B2 JP 6607172 A JP6607172 A JP 6607172A JP 6607172 A JP6607172 A JP 6607172A JP S552630 B2 JPS552630 B2 JP S552630B2
- Authority
- JP
- Japan
- 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 |
|---|---|---|---|
| JP6607172A JPS552630B2 (en:Method) | 1972-06-30 | 1972-06-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6607172A JPS552630B2 (en:Method) | 1972-06-30 | 1972-06-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4926028A JPS4926028A (en:Method) | 1974-03-08 |
| JPS552630B2 true JPS552630B2 (en:Method) | 1980-01-21 |
Family
ID=13305229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6607172A Expired JPS552630B2 (en:Method) | 1972-06-30 | 1972-06-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS552630B2 (en:Method) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS588779B2 (ja) * | 1976-09-20 | 1983-02-17 | 日本電信電話株式会社 | 半導体スイツチの駆動方式 |
| JPS5381555U (en:Method) * | 1976-12-08 | 1978-07-06 | ||
| JPS58186Y2 (ja) * | 1979-10-12 | 1983-01-05 | 利光 南部 | 計算練習機 |
| JP2525757B2 (ja) * | 1982-07-07 | 1996-08-21 | キヤノン株式会社 | 電子式学習機 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3121959A (en) * | 1960-12-12 | 1964-02-25 | Ibm | Educational device |
-
1972
- 1972-06-30 JP JP6607172A patent/JPS552630B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4926028A (en:Method) | 1974-03-08 |