JPS57140197A - Ball pen drawing device for numerical control automatic drawing instrument - Google Patents
Ball pen drawing device for numerical control automatic drawing instrumentInfo
- Publication number
- JPS57140197A JPS57140197A JP2739281A JP2739281A JPS57140197A JP S57140197 A JPS57140197 A JP S57140197A JP 2739281 A JP2739281 A JP 2739281A JP 2739281 A JP2739281 A JP 2739281A JP S57140197 A JPS57140197 A JP S57140197A
- Authority
- JP
- Japan
- Prior art keywords
- numerical control
- ball pen
- control automatic
- instrument
- drawing device
- 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
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2739281A JPS57140197A (en) | 1981-02-25 | 1981-02-25 | Ball pen drawing device for numerical control automatic drawing instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2739281A JPS57140197A (en) | 1981-02-25 | 1981-02-25 | Ball pen drawing device for numerical control automatic drawing instrument |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57140197A true JPS57140197A (en) | 1982-08-30 |
Family
ID=12219784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2739281A Pending JPS57140197A (en) | 1981-02-25 | 1981-02-25 | Ball pen drawing device for numerical control automatic drawing instrument |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57140197A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0331596U (en) * | 1989-07-29 | 1991-03-27 | ||
CN106346989A (en) * | 2016-11-03 | 2017-01-25 | 郝凌云 | Geometrical drawing tool for mathematics teaching |
-
1981
- 1981-02-25 JP JP2739281A patent/JPS57140197A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0331596U (en) * | 1989-07-29 | 1991-03-27 | ||
CN106346989A (en) * | 2016-11-03 | 2017-01-25 | 郝凌云 | Geometrical drawing tool for mathematics teaching |
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