JPH01158193U - - Google Patents
Info
- Publication number
- JPH01158193U JPH01158193U JP5613488U JP5613488U JPH01158193U JP H01158193 U JPH01158193 U JP H01158193U JP 5613488 U JP5613488 U JP 5613488U JP 5613488 U JP5613488 U JP 5613488U JP H01158193 U JPH01158193 U JP H01158193U
- Authority
- JP
- Japan
- Prior art keywords
- ruler
- permanent magnet
- plane
- knob
- protruding
- 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 |
|---|---|---|---|
| JP5613488U JPH01158193U (zh) | 1988-04-26 | 1988-04-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5613488U JPH01158193U (zh) | 1988-04-26 | 1988-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01158193U true JPH01158193U (zh) | 1989-11-01 |
Family
ID=31282016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5613488U Pending JPH01158193U (zh) | 1988-04-26 | 1988-04-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01158193U (zh) |
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1988
- 1988-04-26 JP JP5613488U patent/JPH01158193U/ja active Pending