JPS6227954U - - Google Patents
Info
- Publication number
- JPS6227954U JPS6227954U JP11969785U JP11969785U JPS6227954U JP S6227954 U JPS6227954 U JP S6227954U JP 11969785 U JP11969785 U JP 11969785U JP 11969785 U JP11969785 U JP 11969785U JP S6227954 U JPS6227954 U JP S6227954U
- Authority
- JP
- Japan
- Prior art keywords
- outer tube
- movable bodies
- rotating
- slit
- driving means
- 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
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11969785U JPS6227954U (sv) | 1985-08-02 | 1985-08-02 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11969785U JPS6227954U (sv) | 1985-08-02 | 1985-08-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6227954U true JPS6227954U (sv) | 1987-02-20 |
Family
ID=31007310
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11969785U Pending JPS6227954U (sv) | 1985-08-02 | 1985-08-02 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6227954U (sv) |
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1985
- 1985-08-02 JP JP11969785U patent/JPS6227954U/ja active Pending