JPS63181692U - - Google Patents

Info

Publication number
JPS63181692U
JPS63181692U JP6786387U JP6786387U JPS63181692U JP S63181692 U JPS63181692 U JP S63181692U JP 6786387 U JP6786387 U JP 6786387U JP 6786387 U JP6786387 U JP 6786387U JP S63181692 U JPS63181692 U JP S63181692U
Authority
JP
Japan
Prior art keywords
inner tube
outer tube
tube
connects
attached
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
Application number
JP6786387U
Other languages
English (en)
Japanese (ja)
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 JP6786387U priority Critical patent/JPS63181692U/ja
Publication of JPS63181692U publication Critical patent/JPS63181692U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
JP6786387U 1987-05-08 1987-05-08 Pending JPS63181692U (fi)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6786387U JPS63181692U (fi) 1987-05-08 1987-05-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6786387U JPS63181692U (fi) 1987-05-08 1987-05-08

Publications (1)

Publication Number Publication Date
JPS63181692U true JPS63181692U (fi) 1988-11-24

Family

ID=30907153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6786387U Pending JPS63181692U (fi) 1987-05-08 1987-05-08

Country Status (1)

Country Link
JP (1) JPS63181692U (fi)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11173058A (ja) * 1997-12-12 1999-06-29 Ohbayashi Corp 削孔工法
JPH11173057A (ja) * 1997-12-12 1999-06-29 Ohbayashi Corp 削孔工法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11173058A (ja) * 1997-12-12 1999-06-29 Ohbayashi Corp 削孔工法
JPH11173057A (ja) * 1997-12-12 1999-06-29 Ohbayashi Corp 削孔工法

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