JPH022798Y2 - - Google Patents
Info
- Publication number
- JPH022798Y2 JPH022798Y2 JP18754483U JP18754483U JPH022798Y2 JP H022798 Y2 JPH022798 Y2 JP H022798Y2 JP 18754483 U JP18754483 U JP 18754483U JP 18754483 U JP18754483 U JP 18754483U JP H022798 Y2 JPH022798 Y2 JP H022798Y2
- Authority
- JP
- Japan
- Prior art keywords
- outer tube
- tube
- head ring
- screw
- propels
- 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.)
- Expired
Links
- 238000007796 conventional method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18754483U JPS6096495U (ja) | 1983-12-06 | 1983-12-06 | 筒管の地中前進装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18754483U JPS6096495U (ja) | 1983-12-06 | 1983-12-06 | 筒管の地中前進装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6096495U JPS6096495U (ja) | 1985-07-01 |
| JPH022798Y2 true JPH022798Y2 (en]) | 1990-01-23 |
Family
ID=30404808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18754483U Granted JPS6096495U (ja) | 1983-12-06 | 1983-12-06 | 筒管の地中前進装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6096495U (en]) |
-
1983
- 1983-12-06 JP JP18754483U patent/JPS6096495U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6096495U (ja) | 1985-07-01 |
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