JPS5664090A - Method and apparatus for correcting promoting direction of embedded pipe with small diameter - Google Patents

Method and apparatus for correcting promoting direction of embedded pipe with small diameter

Info

Publication number
JPS5664090A
JPS5664090A JP1345180A JP1345180A JPS5664090A JP S5664090 A JPS5664090 A JP S5664090A JP 1345180 A JP1345180 A JP 1345180A JP 1345180 A JP1345180 A JP 1345180A JP S5664090 A JPS5664090 A JP S5664090A
Authority
JP
Japan
Prior art keywords
correcting
small diameter
embedded pipe
promoting direction
promoting
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
JP1345180A
Other languages
Japanese (ja)
Inventor
Shiyuuichi Ishikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ASANO KOUJI KK
Nitto Koji Co Ltd
Original Assignee
ASANO KOUJI KK
Nitto Koji Co Ltd
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 by ASANO KOUJI KK, Nitto Koji Co Ltd filed Critical ASANO KOUJI KK
Priority to JP1345180A priority Critical patent/JPS5664090A/en
Publication of JPS5664090A publication Critical patent/JPS5664090A/en
Pending legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP1345180A 1980-02-06 1980-02-06 Method and apparatus for correcting promoting direction of embedded pipe with small diameter Pending JPS5664090A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1345180A JPS5664090A (en) 1980-02-06 1980-02-06 Method and apparatus for correcting promoting direction of embedded pipe with small diameter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1345180A JPS5664090A (en) 1980-02-06 1980-02-06 Method and apparatus for correcting promoting direction of embedded pipe with small diameter

Publications (1)

Publication Number Publication Date
JPS5664090A true JPS5664090A (en) 1981-06-01

Family

ID=11833497

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1345180A Pending JPS5664090A (en) 1980-02-06 1980-02-06 Method and apparatus for correcting promoting direction of embedded pipe with small diameter

Country Status (1)

Country Link
JP (1) JPS5664090A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6357537B1 (en) 2000-03-15 2002-03-19 Vermeer Manufacturing Company Directional drilling machine and method of directional drilling
US6491115B2 (en) 2000-03-15 2002-12-10 Vermeer Manufacturing Company Directional drilling machine and method of directional drilling

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6357537B1 (en) 2000-03-15 2002-03-19 Vermeer Manufacturing Company Directional drilling machine and method of directional drilling
US6491115B2 (en) 2000-03-15 2002-12-10 Vermeer Manufacturing Company Directional drilling machine and method of directional drilling

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