JPS63121696U - - Google Patents
Info
- Publication number
- JPS63121696U JPS63121696U JP984587U JP984587U JPS63121696U JP S63121696 U JPS63121696 U JP S63121696U JP 984587 U JP984587 U JP 984587U JP 984587 U JP984587 U JP 984587U JP S63121696 U JPS63121696 U JP S63121696U
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- connecting pipe
- bolt
- leading
- collar
- 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
- 238000000605 extraction Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP984587U JPS63121696U (de) | 1987-01-28 | 1987-01-28 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP984587U JPS63121696U (de) | 1987-01-28 | 1987-01-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63121696U true JPS63121696U (de) | 1988-08-08 |
Family
ID=30795544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP984587U Pending JPS63121696U (de) | 1987-01-28 | 1987-01-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63121696U (de) |
-
1987
- 1987-01-28 JP JP984587U patent/JPS63121696U/ja active Pending