JPH0250489U - - Google Patents
Info
- Publication number
- JPH0250489U JPH0250489U JP12941688U JP12941688U JPH0250489U JP H0250489 U JPH0250489 U JP H0250489U JP 12941688 U JP12941688 U JP 12941688U JP 12941688 U JP12941688 U JP 12941688U JP H0250489 U JPH0250489 U JP H0250489U
- Authority
- JP
- Japan
- Prior art keywords
- hole
- boom
- bending
- drilling
- extending
- 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
- 238000005452 bending Methods 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12941688U JPH078743Y2 (ja) | 1988-09-30 | 1988-09-30 | 把持式穴掘建柱車 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12941688U JPH078743Y2 (ja) | 1988-09-30 | 1988-09-30 | 把持式穴掘建柱車 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0250489U true JPH0250489U (zh) | 1990-04-09 |
JPH078743Y2 JPH078743Y2 (ja) | 1995-03-06 |
Family
ID=31383672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12941688U Expired - Lifetime JPH078743Y2 (ja) | 1988-09-30 | 1988-09-30 | 把持式穴掘建柱車 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH078743Y2 (zh) |
-
1988
- 1988-09-30 JP JP12941688U patent/JPH078743Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH078743Y2 (ja) | 1995-03-06 |