JPH0358349U - - Google Patents
Info
- Publication number
- JPH0358349U JPH0358349U JP11959089U JP11959089U JPH0358349U JP H0358349 U JPH0358349 U JP H0358349U JP 11959089 U JP11959089 U JP 11959089U JP 11959089 U JP11959089 U JP 11959089U JP H0358349 U JPH0358349 U JP H0358349U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- stage rod
- casing
- stage
- rod
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11959089U JPH0358349U (en]) | 1989-10-11 | 1989-10-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11959089U JPH0358349U (en]) | 1989-10-11 | 1989-10-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0358349U true JPH0358349U (en]) | 1991-06-06 |
Family
ID=31667706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11959089U Pending JPH0358349U (en]) | 1989-10-11 | 1989-10-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0358349U (en]) |
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1989
- 1989-10-11 JP JP11959089U patent/JPH0358349U/ja active Pending