JPH01105690U - - Google Patents
Info
- Publication number
- JPH01105690U JPH01105690U JP20083887U JP20083887U JPH01105690U JP H01105690 U JPH01105690 U JP H01105690U JP 20083887 U JP20083887 U JP 20083887U JP 20083887 U JP20083887 U JP 20083887U JP H01105690 U JPH01105690 U JP H01105690U
- Authority
- JP
- Japan
- Prior art keywords
- pin
- bar
- keel bar
- pipe
- joint part
- 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 |
|---|---|---|---|
| JP20083887U JPH01105690U (en]) | 1987-12-30 | 1987-12-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20083887U JPH01105690U (en]) | 1987-12-30 | 1987-12-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01105690U true JPH01105690U (en]) | 1989-07-17 |
Family
ID=31491227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20083887U Pending JPH01105690U (en]) | 1987-12-30 | 1987-12-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01105690U (en]) |
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1987
- 1987-12-30 JP JP20083887U patent/JPH01105690U/ja active Pending