JPS62129491U - - Google Patents
Info
- Publication number
- JPS62129491U JPS62129491U JP1647686U JP1647686U JPS62129491U JP S62129491 U JPS62129491 U JP S62129491U JP 1647686 U JP1647686 U JP 1647686U JP 1647686 U JP1647686 U JP 1647686U JP S62129491 U JPS62129491 U JP S62129491U
- Authority
- JP
- Japan
- Prior art keywords
- drilling
- rod
- view
- rotating device
- drilling 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.)
- Granted
Links
- 238000009412 basement excavation Methods 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims 12
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1647686U JPH0349189Y2 (enExample) | 1986-02-07 | 1986-02-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1647686U JPH0349189Y2 (enExample) | 1986-02-07 | 1986-02-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62129491U true JPS62129491U (enExample) | 1987-08-15 |
| JPH0349189Y2 JPH0349189Y2 (enExample) | 1991-10-21 |
Family
ID=30808364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1647686U Expired JPH0349189Y2 (enExample) | 1986-02-07 | 1986-02-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0349189Y2 (enExample) |
-
1986
- 1986-02-07 JP JP1647686U patent/JPH0349189Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0349189Y2 (enExample) | 1991-10-21 |
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