JPS61109793U - - Google Patents
Info
- Publication number
- JPS61109793U JPS61109793U JP20113584U JP20113584U JPS61109793U JP S61109793 U JPS61109793 U JP S61109793U JP 20113584 U JP20113584 U JP 20113584U JP 20113584 U JP20113584 U JP 20113584U JP S61109793 U JPS61109793 U JP S61109793U
- Authority
- JP
- Japan
- Prior art keywords
- transparent plate
- triangular
- ruler
- plate body
- displayed
- 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 |
|---|---|---|---|
| JP20113584U JPS61109793U (pt) | 1984-12-24 | 1984-12-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20113584U JPS61109793U (pt) | 1984-12-24 | 1984-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61109793U true JPS61109793U (pt) | 1986-07-11 |
Family
ID=30762636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20113584U Pending JPS61109793U (pt) | 1984-12-24 | 1984-12-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61109793U (pt) |
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1984
- 1984-12-24 JP JP20113584U patent/JPS61109793U/ja active Pending