JPH03111692U - - Google Patents
Info
- Publication number
- JPH03111692U JPH03111692U JP1741490U JP1741490U JPH03111692U JP H03111692 U JPH03111692 U JP H03111692U JP 1741490 U JP1741490 U JP 1741490U JP 1741490 U JP1741490 U JP 1741490U JP H03111692 U JPH03111692 U JP H03111692U
- Authority
- JP
- Japan
- Prior art keywords
- leading
- tube
- cylinders
- small diameter
- fitting
- 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
- 238000007789 sealing Methods 0.000 claims 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1741490U JP2520768Y2 (ja) | 1990-02-26 | 1990-02-26 | 小口径管推進機の先導管 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1741490U JP2520768Y2 (ja) | 1990-02-26 | 1990-02-26 | 小口径管推進機の先導管 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03111692U true JPH03111692U (de) | 1991-11-15 |
| JP2520768Y2 JP2520768Y2 (ja) | 1996-12-18 |
Family
ID=31520625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1741490U Expired - Lifetime JP2520768Y2 (ja) | 1990-02-26 | 1990-02-26 | 小口径管推進機の先導管 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2520768Y2 (de) |
-
1990
- 1990-02-26 JP JP1741490U patent/JP2520768Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2520768Y2 (ja) | 1996-12-18 |