JPS6331994Y2 - - Google Patents
Info
- Publication number
- JPS6331994Y2 JPS6331994Y2 JP16712382U JP16712382U JPS6331994Y2 JP S6331994 Y2 JPS6331994 Y2 JP S6331994Y2 JP 16712382 U JP16712382 U JP 16712382U JP 16712382 U JP16712382 U JP 16712382U JP S6331994 Y2 JPS6331994 Y2 JP S6331994Y2
- Authority
- JP
- Japan
- Prior art keywords
- circular
- board
- eraser
- hole
- holes
- 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.)
- Expired
Links
- 238000012937 correction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
Landscapes
- Drawing Aids And Blackboards (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16712382U JPS5971794U (ja) | 1982-11-04 | 1982-11-04 | 円形字消し板 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16712382U JPS5971794U (ja) | 1982-11-04 | 1982-11-04 | 円形字消し板 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5971794U JPS5971794U (ja) | 1984-05-16 |
| JPS6331994Y2 true JPS6331994Y2 (en]) | 1988-08-25 |
Family
ID=30365710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16712382U Granted JPS5971794U (ja) | 1982-11-04 | 1982-11-04 | 円形字消し板 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5971794U (en]) |
-
1982
- 1982-11-04 JP JP16712382U patent/JPS5971794U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5971794U (ja) | 1984-05-16 |
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