JPS643494U - - Google Patents
Info
- Publication number
- JPS643494U JPS643494U JP9818087U JP9818087U JPS643494U JP S643494 U JPS643494 U JP S643494U JP 9818087 U JP9818087 U JP 9818087U JP 9818087 U JP9818087 U JP 9818087U JP S643494 U JPS643494 U JP S643494U
- Authority
- JP
- Japan
- Prior art keywords
- hollow member
- electronic whiteboard
- pulley
- hollow
- whiteboard device
- 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
- 238000004804 winding Methods 0.000 claims description 4
Landscapes
- Drawing Aids And Blackboards (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9818087U JPS643494U (cs) | 1987-06-26 | 1987-06-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9818087U JPS643494U (cs) | 1987-06-26 | 1987-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS643494U true JPS643494U (cs) | 1989-01-10 |
Family
ID=31324213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9818087U Pending JPS643494U (cs) | 1987-06-26 | 1987-06-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS643494U (cs) |
-
1987
- 1987-06-26 JP JP9818087U patent/JPS643494U/ja active Pending
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