JPS5443409B2 - - Google Patents
Info
- Publication number
- JPS5443409B2 JPS5443409B2 JP3324072A JP3324072A JPS5443409B2 JP S5443409 B2 JPS5443409 B2 JP S5443409B2 JP 3324072 A JP3324072 A JP 3324072A JP 3324072 A JP3324072 A JP 3324072A JP S5443409 B2 JPS5443409 B2 JP S5443409B2
- 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 |
|---|---|---|---|
| JP3324072A JPS5443409B2 (https=) | 1972-04-03 | 1972-04-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3324072A JPS5443409B2 (https=) | 1972-04-03 | 1972-04-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS48100220A JPS48100220A (https=) | 1973-12-18 |
| JPS5443409B2 true JPS5443409B2 (https=) | 1979-12-20 |
Family
ID=12380928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3324072A Expired JPS5443409B2 (https=) | 1972-04-03 | 1972-04-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5443409B2 (https=) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS527705A (en) * | 1975-07-08 | 1977-01-21 | Yoshiro Nakamatsu | Recorder with automatic operation signal |
| JPS5342933A (en) * | 1976-09-29 | 1978-04-18 | Teijin Ltd | Studying device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3121959A (en) * | 1960-12-12 | 1964-02-25 | Ibm | Educational device |
| US3360873A (en) * | 1965-10-01 | 1968-01-02 | James A. Tillotson | Electronic device and method for testing and teaching |
-
1972
- 1972-04-03 JP JP3324072A patent/JPS5443409B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS48100220A (https=) | 1973-12-18 |