JPH01172077U - - Google Patents
Info
- Publication number
- JPH01172077U JPH01172077U JP6807488U JP6807488U JPH01172077U JP H01172077 U JPH01172077 U JP H01172077U JP 6807488 U JP6807488 U JP 6807488U JP 6807488 U JP6807488 U JP 6807488U JP H01172077 U JPH01172077 U JP H01172077U
- Authority
- JP
- Japan
- Prior art keywords
- electronic
- correct
- practice device
- incorrect answers
- book
- Prior art date
- 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)
- Calculators And Similar Devices (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6807488U JPH01172077U (uk) | 1988-05-25 | 1988-05-25 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6807488U JPH01172077U (uk) | 1988-05-25 | 1988-05-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01172077U true JPH01172077U (uk) | 1989-12-06 |
Family
ID=31293402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6807488U Pending JPH01172077U (uk) | 1988-05-25 | 1988-05-25 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01172077U (uk) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0883039A (ja) * | 1994-09-13 | 1996-03-26 | Nakagawajiyuku:Kk | 自己テスト学習機及び自己テスト学習システム |
-
1988
- 1988-05-25 JP JP6807488U patent/JPH01172077U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0883039A (ja) * | 1994-09-13 | 1996-03-26 | Nakagawajiyuku:Kk | 自己テスト学習機及び自己テスト学習システム |
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