JPH0174198U - - Google Patents
Info
- Publication number
- JPH0174198U JPH0174198U JP1987170789U JP17078987U JPH0174198U JP H0174198 U JPH0174198 U JP H0174198U JP 1987170789 U JP1987170789 U JP 1987170789U JP 17078987 U JP17078987 U JP 17078987U JP H0174198 U JPH0174198 U JP H0174198U
- Authority
- JP
- Japan
- Prior art keywords
- ruler
- film
- ratio
- triangular
- 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 |
|---|---|---|---|
| JP1987170789U JPH0174198U (bs) | 1987-11-09 | 1987-11-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987170789U JPH0174198U (bs) | 1987-11-09 | 1987-11-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0174198U true JPH0174198U (bs) | 1989-05-19 |
Family
ID=31462036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987170789U Pending JPH0174198U (bs) | 1987-11-09 | 1987-11-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0174198U (bs) |
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1987
- 1987-11-09 JP JP1987170789U patent/JPH0174198U/ja active Pending