JPS52129353U - - Google Patents
Info
- Publication number
- JPS52129353U JPS52129353U JP3600776U JP3600776U JPS52129353U JP S52129353 U JPS52129353 U JP S52129353U JP 3600776 U JP3600776 U JP 3600776U JP 3600776 U JP3600776 U JP 3600776U JP S52129353 U JPS52129353 U JP S52129353U
- 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.)
- Pending
Links
Landscapes
- Electrically Operated Instructional Devices (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3600776U JPS52129353U (OSRAM) | 1976-03-25 | 1976-03-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3600776U JPS52129353U (OSRAM) | 1976-03-25 | 1976-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS52129353U true JPS52129353U (OSRAM) | 1977-10-01 |
Family
ID=28495322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3600776U Pending JPS52129353U (OSRAM) | 1976-03-25 | 1976-03-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS52129353U (OSRAM) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3187443A (en) * | 1963-05-10 | 1965-06-08 | Schure Alexander | Teaching and testing system for reinforced programmed learning |
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1976
- 1976-03-25 JP JP3600776U patent/JPS52129353U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3187443A (en) * | 1963-05-10 | 1965-06-08 | Schure Alexander | Teaching and testing system for reinforced programmed learning |