JPH02121990U - - Google Patents
Info
- Publication number
- JPH02121990U JPH02121990U JP3142689U JP3142689U JPH02121990U JP H02121990 U JPH02121990 U JP H02121990U JP 3142689 U JP3142689 U JP 3142689U JP 3142689 U JP3142689 U JP 3142689U JP H02121990 U JPH02121990 U JP H02121990U
- Authority
- JP
- Japan
- Prior art keywords
- display board
- scaled ruler
- scaled
- ruler
- fulcrum
- 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)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3142689U JPH02121990U (ko) | 1989-03-22 | 1989-03-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3142689U JPH02121990U (ko) | 1989-03-22 | 1989-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02121990U true JPH02121990U (ko) | 1990-10-04 |
Family
ID=31257280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3142689U Pending JPH02121990U (ko) | 1989-03-22 | 1989-03-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02121990U (ko) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS454255Y1 (ko) * | 1967-07-19 | 1970-02-27 |
-
1989
- 1989-03-22 JP JP3142689U patent/JPH02121990U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS454255Y1 (ko) * | 1967-07-19 | 1970-02-27 |