JPH01123223U - - Google Patents
Info
- Publication number
- JPH01123223U JPH01123223U JP1852088U JP1852088U JPH01123223U JP H01123223 U JPH01123223 U JP H01123223U JP 1852088 U JP1852088 U JP 1852088U JP 1852088 U JP1852088 U JP 1852088U JP H01123223 U JPH01123223 U JP H01123223U
- Authority
- JP
- Japan
- Prior art keywords
- beads
- digit
- combination
- digits
- abacus
- 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.)
- Granted
Links
- 239000011324 bead Substances 0.000 claims description 13
- 230000003340 mental effect Effects 0.000 claims description 4
- 239000003086 colorant Substances 0.000 claims description 2
Landscapes
- Sheet Holders (AREA)
- Toys (AREA)
- Electrically Operated Instructional Devices (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988018520U JPH0650025Y2 (ja) | 1988-02-15 | 1988-02-15 | 暗算練習用そろばん |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988018520U JPH0650025Y2 (ja) | 1988-02-15 | 1988-02-15 | 暗算練習用そろばん |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01123223U true JPH01123223U (fi) | 1989-08-22 |
| JPH0650025Y2 JPH0650025Y2 (ja) | 1994-12-14 |
Family
ID=31233244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988018520U Expired - Lifetime JPH0650025Y2 (ja) | 1988-02-15 | 1988-02-15 | 暗算練習用そろばん |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0650025Y2 (fi) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4869092U (fi) * | 1971-12-04 | 1973-09-01 | ||
| JPS4865998A (fi) * | 1971-12-10 | 1973-09-10 | ||
| JPS5871833U (ja) * | 1981-11-06 | 1983-05-16 | 金井 健 | 教育用九珠算盤 |
| JPS6232424U (fi) * | 1985-04-01 | 1987-02-26 |
-
1988
- 1988-02-15 JP JP1988018520U patent/JPH0650025Y2/ja not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4869092U (fi) * | 1971-12-04 | 1973-09-01 | ||
| JPS4865998A (fi) * | 1971-12-10 | 1973-09-10 | ||
| JPS5871833U (ja) * | 1981-11-06 | 1983-05-16 | 金井 健 | 教育用九珠算盤 |
| JPS6232424U (fi) * | 1985-04-01 | 1987-02-26 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0650025Y2 (ja) | 1994-12-14 |