JPS6168192U - - Google Patents
Info
- Publication number
- JPS6168192U JPS6168192U JP14961684U JP14961684U JPS6168192U JP S6168192 U JPS6168192 U JP S6168192U JP 14961684 U JP14961684 U JP 14961684U JP 14961684 U JP14961684 U JP 14961684U JP S6168192 U JPS6168192 U JP S6168192U
- Authority
- JP
- Japan
- Prior art keywords
- screw
- tip
- directions
- leading pipe
- casing
- 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 3
- 238000005553 drilling Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14961684U JPH0235918Y2 (ru) | 1984-10-04 | 1984-10-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14961684U JPH0235918Y2 (ru) | 1984-10-04 | 1984-10-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6168192U true JPS6168192U (ru) | 1986-05-10 |
| JPH0235918Y2 JPH0235918Y2 (ru) | 1990-10-01 |
Family
ID=30707788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14961684U Expired JPH0235918Y2 (ru) | 1984-10-04 | 1984-10-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0235918Y2 (ru) |
-
1984
- 1984-10-04 JP JP14961684U patent/JPH0235918Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0235918Y2 (ru) | 1990-10-01 |
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