JPS51117406A - Underground drilling apparatus - Google Patents

Underground drilling apparatus

Info

Publication number
JPS51117406A
JPS51117406A JP4188375A JP4188375A JPS51117406A JP S51117406 A JPS51117406 A JP S51117406A JP 4188375 A JP4188375 A JP 4188375A JP 4188375 A JP4188375 A JP 4188375A JP S51117406 A JPS51117406 A JP S51117406A
Authority
JP
Japan
Prior art keywords
drilling apparatus
underground drilling
underground
drilling
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
JP4188375A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5327884B2 (OSRAM
Inventor
Riyousuke Arioka
Kazugorou Itou
Yoshinori Yamazaki
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP4188375A priority Critical patent/JPS51117406A/ja
Publication of JPS51117406A publication Critical patent/JPS51117406A/ja
Publication of JPS5327884B2 publication Critical patent/JPS5327884B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP4188375A 1975-04-08 1975-04-08 Underground drilling apparatus Granted JPS51117406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4188375A JPS51117406A (en) 1975-04-08 1975-04-08 Underground drilling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4188375A JPS51117406A (en) 1975-04-08 1975-04-08 Underground drilling apparatus

Publications (2)

Publication Number Publication Date
JPS51117406A true JPS51117406A (en) 1976-10-15
JPS5327884B2 JPS5327884B2 (OSRAM) 1978-08-11

Family

ID=12620663

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4188375A Granted JPS51117406A (en) 1975-04-08 1975-04-08 Underground drilling apparatus

Country Status (1)

Country Link
JP (1) JPS51117406A (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56131794A (en) * 1980-03-19 1981-10-15 Hitachi Shipbuilding Eng Co Burying of propelling tube
KR100449002B1 (ko) * 2002-02-08 2004-09-18 조복래 비굴착식 소구경 터널 굴진공법 및 그 장치

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56131794A (en) * 1980-03-19 1981-10-15 Hitachi Shipbuilding Eng Co Burying of propelling tube
KR100449002B1 (ko) * 2002-02-08 2004-09-18 조복래 비굴착식 소구경 터널 굴진공법 및 그 장치

Also Published As

Publication number Publication date
JPS5327884B2 (OSRAM) 1978-08-11

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