JPH03126692U - - Google Patents
Info
- Publication number
- JPH03126692U JPH03126692U JP3666390U JP3666390U JPH03126692U JP H03126692 U JPH03126692 U JP H03126692U JP 3666390 U JP3666390 U JP 3666390U JP 3666390 U JP3666390 U JP 3666390U JP H03126692 U JPH03126692 U JP H03126692U
- Authority
- JP
- Japan
- Prior art keywords
- circular
- plate
- hole
- transparent
- center
- 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)
Description
１図は本考案の平面図。２図は部分断面図。１
……板、２……円の板、３……穴、４……中心点
。
……板、２……円の板、３……穴、４……中心点
。
Claims (1)
- 透明の板１に円の穴があり、その穴に嵌まる透
明の円の板２がある。板１と円の板２の取り付け
部分は凸と凹になつていて回動できる。円の板２
には、中心点４に印があり中心から任意の位置に
任意の数のペン先が差し込める穴３が開けてある
ことを特徴とした円定規。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3666390U JPH03126692U (ja) | 1990-04-05 | 1990-04-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3666390U JPH03126692U (ja) | 1990-04-05 | 1990-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03126692U true JPH03126692U (ja) | 1991-12-20 |
Family
ID=31543090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3666390U Pending JPH03126692U (ja) | 1990-04-05 | 1990-04-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03126692U (ja) |
-
1990
- 1990-04-05 JP JP3666390U patent/JPH03126692U/ja active Pending