JPS6278493U - - Google Patents
Info
- Publication number
- JPS6278493U JPS6278493U JP17170885U JP17170885U JPS6278493U JP S6278493 U JPS6278493 U JP S6278493U JP 17170885 U JP17170885 U JP 17170885U JP 17170885 U JP17170885 U JP 17170885U JP S6278493 U JPS6278493 U JP S6278493U
- Authority
- JP
- Japan
- Prior art keywords
- ruler
- triangular
- functions
- triangular ruler
- utility
- 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 |
|---|---|---|---|
| JP17170885U JPS6278493U (zh) | 1985-11-06 | 1985-11-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17170885U JPS6278493U (zh) | 1985-11-06 | 1985-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6278493U true JPS6278493U (zh) | 1987-05-19 |
Family
ID=31107583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17170885U Pending JPS6278493U (zh) | 1985-11-06 | 1985-11-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6278493U (zh) |
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1985
- 1985-11-06 JP JP17170885U patent/JPS6278493U/ja active Pending