JPS57174590A - Water powered boring machine - Google Patents

Water powered boring machine

Info

Publication number
JPS57174590A
JPS57174590A JP5918281A JP5918281A JPS57174590A JP S57174590 A JPS57174590 A JP S57174590A JP 5918281 A JP5918281 A JP 5918281A JP 5918281 A JP5918281 A JP 5918281A JP S57174590 A JPS57174590 A JP S57174590A
Authority
JP
Japan
Prior art keywords
boring machine
water powered
powered boring
water
machine
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
Application number
JP5918281A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6144191B2 (enExample
Inventor
Toshimi Nagano
Kinai Takagi
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.)
Japan National Railways
Nippon Kokuyu Tetsudo
Original Assignee
Japan National Railways
Nippon Kokuyu Tetsudo
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 Japan National Railways, Nippon Kokuyu Tetsudo filed Critical Japan National Railways
Priority to JP5918281A priority Critical patent/JPS57174590A/ja
Publication of JPS57174590A publication Critical patent/JPS57174590A/ja
Publication of JPS6144191B2 publication Critical patent/JPS6144191B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP5918281A 1981-04-21 1981-04-21 Water powered boring machine Granted JPS57174590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5918281A JPS57174590A (en) 1981-04-21 1981-04-21 Water powered boring machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5918281A JPS57174590A (en) 1981-04-21 1981-04-21 Water powered boring machine

Publications (2)

Publication Number Publication Date
JPS57174590A true JPS57174590A (en) 1982-10-27
JPS6144191B2 JPS6144191B2 (enExample) 1986-10-01

Family

ID=13106002

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5918281A Granted JPS57174590A (en) 1981-04-21 1981-04-21 Water powered boring machine

Country Status (1)

Country Link
JP (1) JPS57174590A (enExample)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS501323A (enExample) * 1973-05-11 1975-01-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS501323A (enExample) * 1973-05-11 1975-01-08

Also Published As

Publication number Publication date
JPS6144191B2 (enExample) 1986-10-01

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