JPH0289301U - - Google Patents
Info
- Publication number
- JPH0289301U JPH0289301U JP16998188U JP16998188U JPH0289301U JP H0289301 U JPH0289301 U JP H0289301U JP 16998188 U JP16998188 U JP 16998188U JP 16998188 U JP16998188 U JP 16998188U JP H0289301 U JPH0289301 U JP H0289301U
- Authority
- JP
- Japan
- Prior art keywords
- angle
- protractor
- ruler
- line
- slope
- 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
- 238000005259 measurement Methods 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16998188U JPH0289301U (de) | 1988-12-28 | 1988-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16998188U JPH0289301U (de) | 1988-12-28 | 1988-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0289301U true JPH0289301U (de) | 1990-07-16 |
Family
ID=31460525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16998188U Pending JPH0289301U (de) | 1988-12-28 | 1988-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0289301U (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS582616B2 (ja) * | 1978-07-05 | 1983-01-18 | 土屋 正彦 | イオンの生成装置 |
-
1988
- 1988-12-28 JP JP16998188U patent/JPH0289301U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS582616B2 (ja) * | 1978-07-05 | 1983-01-18 | 土屋 正彦 | イオンの生成装置 |