JPS63121692U - - Google Patents
Info
- Publication number
- JPS63121692U JPS63121692U JP1200887U JP1200887U JPS63121692U JP S63121692 U JPS63121692 U JP S63121692U JP 1200887 U JP1200887 U JP 1200887U JP 1200887 U JP1200887 U JP 1200887U JP S63121692 U JPS63121692 U JP S63121692U
- Authority
- JP
- Japan
- Prior art keywords
- pressing member
- tubing
- underground
- seal ring
- elastic seal
- 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
- 238000009434 installation Methods 0.000 claims 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1200887U JPH0315677Y2 (enExample) | 1987-01-28 | 1987-01-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1200887U JPH0315677Y2 (enExample) | 1987-01-28 | 1987-01-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63121692U true JPS63121692U (enExample) | 1988-08-08 |
| JPH0315677Y2 JPH0315677Y2 (enExample) | 1991-04-04 |
Family
ID=30799738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1200887U Expired JPH0315677Y2 (enExample) | 1987-01-28 | 1987-01-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0315677Y2 (enExample) |
-
1987
- 1987-01-28 JP JP1200887U patent/JPH0315677Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0315677Y2 (enExample) | 1991-04-04 |