JPH0519638B2 - - Google Patents

Info

Publication number
JPH0519638B2
JPH0519638B2 JP18403185A JP18403185A JPH0519638B2 JP H0519638 B2 JPH0519638 B2 JP H0519638B2 JP 18403185 A JP18403185 A JP 18403185A JP 18403185 A JP18403185 A JP 18403185A JP H0519638 B2 JPH0519638 B2 JP H0519638B2
Authority
JP
Japan
Prior art keywords
rod
support
drifter
guide cell
sleeve
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
JP18403185A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61211490A (ja
Inventor
Katsuhiko Iijima
Mitsuo Nunokawa
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP18403185A priority Critical patent/JPS61211490A/ja
Publication of JPS61211490A publication Critical patent/JPS61211490A/ja
Publication of JPH0519638B2 publication Critical patent/JPH0519638B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP18403185A 1985-08-23 1985-08-23 クロ−ラドリルのロツドサポ−ト装置 Granted JPS61211490A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18403185A JPS61211490A (ja) 1985-08-23 1985-08-23 クロ−ラドリルのロツドサポ−ト装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18403185A JPS61211490A (ja) 1985-08-23 1985-08-23 クロ−ラドリルのロツドサポ−ト装置

Publications (2)

Publication Number Publication Date
JPS61211490A JPS61211490A (ja) 1986-09-19
JPH0519638B2 true JPH0519638B2 (enrdf_load_html_response) 1993-03-17

Family

ID=16146143

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18403185A Granted JPS61211490A (ja) 1985-08-23 1985-08-23 クロ−ラドリルのロツドサポ−ト装置

Country Status (1)

Country Link
JP (1) JPS61211490A (enrdf_load_html_response)

Also Published As

Publication number Publication date
JPS61211490A (ja) 1986-09-19

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