JPS63188185U - - Google Patents
Info
- Publication number
- JPS63188185U JPS63188185U JP7992087U JP7992087U JPS63188185U JP S63188185 U JPS63188185 U JP S63188185U JP 7992087 U JP7992087 U JP 7992087U JP 7992087 U JP7992087 U JP 7992087U JP S63188185 U JPS63188185 U JP S63188185U
- Authority
- JP
- Japan
- Prior art keywords
- straight lines
- blackboard
- intersected
- diagonally
- equal intervals
- 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
- 238000010586 diagram Methods 0.000 claims description 2
Landscapes
- Drawing Aids And Blackboards (AREA)
Description
第１図は本考案の１実施例図の説明使用図であ
る。 １……右斜上向線、２……右斜下向線、３……
縦線。
る。 １……右斜上向線、２……右斜下向線、３……
縦線。
Claims (1)
- 水平方向に対し右斜上方向３０°と右斜下方３
０°の等間隔平行直線を交差させ、前記交点を垂
直方向に直線で結んだ、斜交方眼を設けたことを
特徴とする立体図用黒板。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7992087U JPS63188185U (ja) | 1987-05-28 | 1987-05-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7992087U JPS63188185U (ja) | 1987-05-28 | 1987-05-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63188185U true JPS63188185U (ja) | 1988-12-02 |
Family
ID=30930247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7992087U Pending JPS63188185U (ja) | 1987-05-28 | 1987-05-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63188185U (ja) |
-
1987
- 1987-05-28 JP JP7992087U patent/JPS63188185U/ja active Pending