JPS5439774B2 - - Google Patents
Info
- Publication number
- JPS5439774B2 JPS5439774B2 JP13281275A JP13281275A JPS5439774B2 JP S5439774 B2 JPS5439774 B2 JP S5439774B2 JP 13281275 A JP13281275 A JP 13281275A JP 13281275 A JP13281275 A JP 13281275A JP S5439774 B2 JPS5439774 B2 JP S5439774B2
- 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 |
|---|---|---|---|
| JP13281275A JPS5256633A (en) | 1975-11-05 | 1975-11-05 | Group studying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13281275A JPS5256633A (en) | 1975-11-05 | 1975-11-05 | Group studying system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5256633A JPS5256633A (en) | 1977-05-10 |
| JPS5439774B2 true JPS5439774B2 (en)) | 1979-11-29 |
Family
ID=15090144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13281275A Granted JPS5256633A (en) | 1975-11-05 | 1975-11-05 | Group studying system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5256633A (en)) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5936308A (ja) * | 1983-07-20 | 1984-02-28 | Matsushita Electric Ind Co Ltd | ビデオテ−プレコ−ダ切替装置 |
-
1975
- 1975-11-05 JP JP13281275A patent/JPS5256633A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5256633A (en) | 1977-05-10 |