JPH0482094U - - Google Patents
Info
- Publication number
- JPH0482094U JPH0482094U JP12690290U JP12690290U JPH0482094U JP H0482094 U JPH0482094 U JP H0482094U JP 12690290 U JP12690290 U JP 12690290U JP 12690290 U JP12690290 U JP 12690290U JP H0482094 U JPH0482094 U JP H0482094U
- Authority
- JP
- Japan
- Prior art keywords
- rod
- rods
- guide
- outer rod
- inner 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 2
- 238000005553 drilling Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12690290U JPH083511Y2 (ja) | 1990-11-28 | 1990-11-28 | 掘削装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12690290U JPH083511Y2 (ja) | 1990-11-28 | 1990-11-28 | 掘削装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0482094U true JPH0482094U (th) | 1992-07-16 |
| JPH083511Y2 JPH083511Y2 (ja) | 1996-01-31 |
Family
ID=31874427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12690290U Expired - Fee Related JPH083511Y2 (ja) | 1990-11-28 | 1990-11-28 | 掘削装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH083511Y2 (th) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0679897U (ja) * | 1993-04-23 | 1994-11-08 | 株式会社亀山 | 掘削装置 |
| JP2021116542A (ja) * | 2020-01-23 | 2021-08-10 | 株式会社 山全 | 深井戸の掘削方法及び二重管保持具 |
-
1990
- 1990-11-28 JP JP12690290U patent/JPH083511Y2/ja not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0679897U (ja) * | 1993-04-23 | 1994-11-08 | 株式会社亀山 | 掘削装置 |
| JP2021116542A (ja) * | 2020-01-23 | 2021-08-10 | 株式会社 山全 | 深井戸の掘削方法及び二重管保持具 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH083511Y2 (ja) | 1996-01-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |