JPH0114463Y2 - - Google Patents
Info
- Publication number
- JPH0114463Y2 JPH0114463Y2 JP1980136398U JP13639880U JPH0114463Y2 JP H0114463 Y2 JPH0114463 Y2 JP H0114463Y2 JP 1980136398 U JP1980136398 U JP 1980136398U JP 13639880 U JP13639880 U JP 13639880U JP H0114463 Y2 JPH0114463 Y2 JP H0114463Y2
- Authority
- JP
- Japan
- Prior art keywords
- head
- drawing board
- sphere
- vertical
- ruler
- 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.)
- Expired
Links
Landscapes
- Drawing Aids And Blackboards (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1980136398U JPH0114463Y2 (en]) | 1980-09-25 | 1980-09-25 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1980136398U JPH0114463Y2 (en]) | 1980-09-25 | 1980-09-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5759691U JPS5759691U (en]) | 1982-04-08 |
JPH0114463Y2 true JPH0114463Y2 (en]) | 1989-04-27 |
Family
ID=29496513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1980136398U Expired JPH0114463Y2 (en]) | 1980-09-25 | 1980-09-25 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0114463Y2 (en]) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5616319Y2 (en]) * | 1975-11-25 | 1981-04-16 |
-
1980
- 1980-09-25 JP JP1980136398U patent/JPH0114463Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5759691U (en]) | 1982-04-08 |
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