JPH0174197U - - Google Patents
Info
- Publication number
- JPH0174197U JPH0174197U JP1987170788U JP17078887U JPH0174197U JP H0174197 U JPH0174197 U JP H0174197U JP 1987170788 U JP1987170788 U JP 1987170788U JP 17078887 U JP17078887 U JP 17078887U JP H0174197 U JPH0174197 U JP H0174197U
- Authority
- JP
- Japan
- Prior art keywords
- ruler
- ratio
- triangular
- paper
- diagonal
- 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 |
|---|---|---|---|
| JP1987170788U JPH0174197U (de) | 1987-11-09 | 1987-11-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987170788U JPH0174197U (de) | 1987-11-09 | 1987-11-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0174197U true JPH0174197U (de) | 1989-05-19 |
Family
ID=31462035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987170788U Pending JPH0174197U (de) | 1987-11-09 | 1987-11-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0174197U (de) |
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1987
- 1987-11-09 JP JP1987170788U patent/JPH0174197U/ja active Pending