JPH0315677Y2 - - Google Patents

Info

Publication number
JPH0315677Y2
JPH0315677Y2 JP1200887U JP1200887U JPH0315677Y2 JP H0315677 Y2 JPH0315677 Y2 JP H0315677Y2 JP 1200887 U JP1200887 U JP 1200887U JP 1200887 U JP1200887 U JP 1200887U JP H0315677 Y2 JPH0315677 Y2 JP H0315677Y2
Authority
JP
Japan
Prior art keywords
tubing
pressing member
underground
seal ring
casing
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.)
Expired
Application number
JP1200887U
Other languages
English (en)
Japanese (ja)
Other versions
JPS63121692U (enrdf_load_stackoverflow
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1200887U priority Critical patent/JPH0315677Y2/ja
Publication of JPS63121692U publication Critical patent/JPS63121692U/ja
Application granted granted Critical
Publication of JPH0315677Y2 publication Critical patent/JPH0315677Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP1200887U 1987-01-28 1987-01-28 Expired JPH0315677Y2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1200887U JPH0315677Y2 (enrdf_load_stackoverflow) 1987-01-28 1987-01-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1200887U JPH0315677Y2 (enrdf_load_stackoverflow) 1987-01-28 1987-01-28

Publications (2)

Publication Number Publication Date
JPS63121692U JPS63121692U (enrdf_load_stackoverflow) 1988-08-08
JPH0315677Y2 true JPH0315677Y2 (enrdf_load_stackoverflow) 1991-04-04

Family

ID=30799738

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1200887U Expired JPH0315677Y2 (enrdf_load_stackoverflow) 1987-01-28 1987-01-28

Country Status (1)

Country Link
JP (1) JPH0315677Y2 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS63121692U (enrdf_load_stackoverflow) 1988-08-08

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