JPS6424786U - - Google Patents
Info
- Publication number
- JPS6424786U JPS6424786U JP11878887U JP11878887U JPS6424786U JP S6424786 U JPS6424786 U JP S6424786U JP 11878887 U JP11878887 U JP 11878887U JP 11878887 U JP11878887 U JP 11878887U JP S6424786 U JPS6424786 U JP S6424786U
- Authority
- JP
- Japan
- Prior art keywords
- excavator
- pipe
- old pipe
- new
- tip
- 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
- 239000012530 fluid Substances 0.000 claims 1
- 230000001681 protective effect Effects 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 238000007796 conventional method Methods 0.000 description 2
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11878887U JPS6424786U (fr) | 1987-07-31 | 1987-07-31 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11878887U JPS6424786U (fr) | 1987-07-31 | 1987-07-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6424786U true JPS6424786U (fr) | 1989-02-10 |
Family
ID=31363441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11878887U Pending JPS6424786U (fr) | 1987-07-31 | 1987-07-31 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6424786U (fr) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6333080B2 (fr) * | 1977-11-28 | 1988-07-04 | Berukutsuoiku Mas Fab Erikon Byuure Ag |
-
1987
- 1987-07-31 JP JP11878887U patent/JPS6424786U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6333080B2 (fr) * | 1977-11-28 | 1988-07-04 | Berukutsuoiku Mas Fab Erikon Byuure Ag |