JPH0417987U - - Google Patents
Info
- Publication number
- JPH0417987U JPH0417987U JP6002690U JP6002690U JPH0417987U JP H0417987 U JPH0417987 U JP H0417987U JP 6002690 U JP6002690 U JP 6002690U JP 6002690 U JP6002690 U JP 6002690U JP H0417987 U JPH0417987 U JP H0417987U
- Authority
- JP
- Japan
- Prior art keywords
- ruler
- slip
- semicircular
- scales
- attach
- 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 |
|---|---|---|---|
| JP6002690U JPH0417987U (en]) | 1990-06-06 | 1990-06-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6002690U JPH0417987U (en]) | 1990-06-06 | 1990-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0417987U true JPH0417987U (en]) | 1992-02-14 |
Family
ID=31587032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6002690U Pending JPH0417987U (en]) | 1990-06-06 | 1990-06-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0417987U (en]) |
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1990
- 1990-06-06 JP JP6002690U patent/JPH0417987U/ja active Pending