JPS519346Y1 - - Google Patents
Info
- Publication number
- JPS519346Y1 JPS519346Y1 JP8283270U JP8283270U JPS519346Y1 JP S519346 Y1 JPS519346 Y1 JP S519346Y1 JP 8283270 U JP8283270 U JP 8283270U JP 8283270 U JP8283270 U JP 8283270U JP S519346 Y1 JPS519346 Y1 JP S519346Y1
- 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
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B7/00—Electrically-operated teaching apparatus or devices working with questions and answers
- G09B7/06—Electrically-operated teaching apparatus or devices working with questions and answers of the multiple-choice answer-type, i.e. where a given question is provided with a series of answers and a choice has to be made from the answers
- G09B7/063—Electrically-operated teaching apparatus or devices working with questions and answers of the multiple-choice answer-type, i.e. where a given question is provided with a series of answers and a choice has to be made from the answers with hand-placed probe or plug
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Electrically Operated Instructional Devices (AREA)
- Instructional Devices (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8283270U JPS519346Y1 (en) | 1970-08-21 | 1970-08-21 | |
| US00160586A US3771240A (en) | 1970-08-05 | 1971-07-08 | Self-teaching system |
| DE2139044A DE2139044C3 (en) | 1970-08-05 | 1971-08-04 | Electric self-learning device |
| GB3678171A GB1341303A (en) | 1970-08-21 | 1971-08-05 | Electric self-teaching system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8283270U JPS519346Y1 (en) | 1970-08-21 | 1970-08-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS519346Y1 true JPS519346Y1 (en) | 1976-03-12 |
Family
ID=13785364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8283270U Expired JPS519346Y1 (en) | 1970-08-05 | 1970-08-21 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS519346Y1 (en) |
| GB (1) | GB1341303A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4854879A (en) * | 1988-08-29 | 1989-08-08 | Dale Chang | Self-teaching book for children with an electronic device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1134507A (en) * | 1965-03-25 | 1968-11-27 | Ibm | Electric diaphragm switch |
-
1970
- 1970-08-21 JP JP8283270U patent/JPS519346Y1/ja not_active Expired
-
1971
- 1971-08-05 GB GB3678171A patent/GB1341303A/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1134507A (en) * | 1965-03-25 | 1968-11-27 | Ibm | Electric diaphragm switch |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1341303A (en) | 1973-12-19 |