JPH0416475U - - Google Patents
Info
- Publication number
- JPH0416475U JPH0416475U JP5692490U JP5692490U JPH0416475U JP H0416475 U JPH0416475 U JP H0416475U JP 5692490 U JP5692490 U JP 5692490U JP 5692490 U JP5692490 U JP 5692490U JP H0416475 U JPH0416475 U JP H0416475U
- Authority
- JP
- Japan
- Prior art keywords
- arithmetic
- keywords
- studying
- help
- solve
- 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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5692490U JPH0416475U (en]) | 1990-05-30 | 1990-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5692490U JPH0416475U (en]) | 1990-05-30 | 1990-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0416475U true JPH0416475U (en]) | 1992-02-10 |
Family
ID=31581181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5692490U Pending JPH0416475U (en]) | 1990-05-30 | 1990-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0416475U (en]) |
-
1990
- 1990-05-30 JP JP5692490U patent/JPH0416475U/ja active Pending