JPH0512391Y2 - - Google Patents

Info

Publication number
JPH0512391Y2
JPH0512391Y2 JP1987065059U JP6505987U JPH0512391Y2 JP H0512391 Y2 JPH0512391 Y2 JP H0512391Y2 JP 1987065059 U JP1987065059 U JP 1987065059U JP 6505987 U JP6505987 U JP 6505987U JP H0512391 Y2 JPH0512391 Y2 JP H0512391Y2
Authority
JP
Japan
Prior art keywords
wellhead
annular packing
shield machine
tube
skin plate
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 - Lifetime
Application number
JP1987065059U
Other languages
English (en)
Japanese (ja)
Other versions
JPS63171490U (enEXAMPLES
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 JP1987065059U priority Critical patent/JPH0512391Y2/ja
Publication of JPS63171490U publication Critical patent/JPS63171490U/ja
Application granted granted Critical
Publication of JPH0512391Y2 publication Critical patent/JPH0512391Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP1987065059U 1987-04-28 1987-04-28 Expired - Lifetime JPH0512391Y2 (enEXAMPLES)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987065059U JPH0512391Y2 (enEXAMPLES) 1987-04-28 1987-04-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987065059U JPH0512391Y2 (enEXAMPLES) 1987-04-28 1987-04-28

Publications (2)

Publication Number Publication Date
JPS63171490U JPS63171490U (enEXAMPLES) 1988-11-08
JPH0512391Y2 true JPH0512391Y2 (enEXAMPLES) 1993-03-30

Family

ID=30901787

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987065059U Expired - Lifetime JPH0512391Y2 (enEXAMPLES) 1987-04-28 1987-04-28

Country Status (1)

Country Link
JP (1) JPH0512391Y2 (enEXAMPLES)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS523871U (enEXAMPLES) * 1975-06-24 1977-01-12

Also Published As

Publication number Publication date
JPS63171490U (enEXAMPLES) 1988-11-08

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