JPH069108Y2 - 穿孔機の方向制御装置 - Google Patents

穿孔機の方向制御装置

Info

Publication number
JPH069108Y2
JPH069108Y2 JP2709989U JP2709989U JPH069108Y2 JP H069108 Y2 JPH069108 Y2 JP H069108Y2 JP 2709989 U JP2709989 U JP 2709989U JP 2709989 U JP2709989 U JP 2709989U JP H069108 Y2 JPH069108 Y2 JP H069108Y2
Authority
JP
Japan
Prior art keywords
bearing block
tip
tube
pipe
cutter
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
JP2709989U
Other languages
English (en)
Japanese (ja)
Other versions
JPH02120589U (enExample
Inventor
吉彦 野尻
清 川崎
隆明 福元
博之 山下
俊明 上原
洋一 田中
啓次郎 佐藤
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
Airec Engineering Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Airec Engineering 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, Airec Engineering Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP2709989U priority Critical patent/JPH069108Y2/ja
Publication of JPH02120589U publication Critical patent/JPH02120589U/ja
Application granted granted Critical
Publication of JPH069108Y2 publication Critical patent/JPH069108Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP2709989U 1989-03-09 1989-03-09 穿孔機の方向制御装置 Expired - Lifetime JPH069108Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2709989U JPH069108Y2 (ja) 1989-03-09 1989-03-09 穿孔機の方向制御装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2709989U JPH069108Y2 (ja) 1989-03-09 1989-03-09 穿孔機の方向制御装置

Publications (2)

Publication Number Publication Date
JPH02120589U JPH02120589U (enExample) 1990-09-28
JPH069108Y2 true JPH069108Y2 (ja) 1994-03-09

Family

ID=31249313

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2709989U Expired - Lifetime JPH069108Y2 (ja) 1989-03-09 1989-03-09 穿孔機の方向制御装置

Country Status (1)

Country Link
JP (1) JPH069108Y2 (enExample)

Also Published As

Publication number Publication date
JPH02120589U (enExample) 1990-09-28

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