JPH01106286U - - Google Patents
Info
- Publication number
- JPH01106286U JPH01106286U JP104688U JP104688U JPH01106286U JP H01106286 U JPH01106286 U JP H01106286U JP 104688 U JP104688 U JP 104688U JP 104688 U JP104688 U JP 104688U JP H01106286 U JPH01106286 U JP H01106286U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- cover
- gap
- cylindrical portion
- ruler
- 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
- Drawing Aids And Blackboards (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP104688U JPH01106286U (zh) | 1988-01-08 | 1988-01-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP104688U JPH01106286U (zh) | 1988-01-08 | 1988-01-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01106286U true JPH01106286U (zh) | 1989-07-18 |
Family
ID=31200592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP104688U Pending JPH01106286U (zh) | 1988-01-08 | 1988-01-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01106286U (zh) |
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1988
- 1988-01-08 JP JP104688U patent/JPH01106286U/ja active Pending