JPH0321497U - - Google Patents
Info
- Publication number
- JPH0321497U JPH0321497U JP8217289U JP8217289U JPH0321497U JP H0321497 U JPH0321497 U JP H0321497U JP 8217289 U JP8217289 U JP 8217289U JP 8217289 U JP8217289 U JP 8217289U JP H0321497 U JPH0321497 U JP H0321497U
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- head
- small diameter
- pilot
- diameter pipe
- 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.)
- Pending
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8217289U JPH0321497U (un) | 1989-07-14 | 1989-07-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8217289U JPH0321497U (un) | 1989-07-14 | 1989-07-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0321497U true JPH0321497U (un) | 1991-03-04 |
Family
ID=31628742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8217289U Pending JPH0321497U (un) | 1989-07-14 | 1989-07-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0321497U (un) |
-
1989
- 1989-07-14 JP JP8217289U patent/JPH0321497U/ja active Pending