JPS6233829Y2 - - Google Patents

Info

Publication number
JPS6233829Y2
JPS6233829Y2 JP6027581U JP6027581U JPS6233829Y2 JP S6233829 Y2 JPS6233829 Y2 JP S6233829Y2 JP 6027581 U JP6027581 U JP 6027581U JP 6027581 U JP6027581 U JP 6027581U JP S6233829 Y2 JPS6233829 Y2 JP S6233829Y2
Authority
JP
Japan
Prior art keywords
rock
guide
bracket
attached
rocks
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
Application number
JP6027581U
Other languages
English (en)
Japanese (ja)
Other versions
JPS57174570U (en]
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 filed Critical
Priority to JP6027581U priority Critical patent/JPS6233829Y2/ja
Publication of JPS57174570U publication Critical patent/JPS57174570U/ja
Application granted granted Critical
Publication of JPS6233829Y2 publication Critical patent/JPS6233829Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)
JP6027581U 1981-04-24 1981-04-24 Expired JPS6233829Y2 (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6027581U JPS6233829Y2 (en]) 1981-04-24 1981-04-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6027581U JPS6233829Y2 (en]) 1981-04-24 1981-04-24

Publications (2)

Publication Number Publication Date
JPS57174570U JPS57174570U (en]) 1982-11-04
JPS6233829Y2 true JPS6233829Y2 (en]) 1987-08-29

Family

ID=29856580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6027581U Expired JPS6233829Y2 (en]) 1981-04-24 1981-04-24

Country Status (1)

Country Link
JP (1) JPS6233829Y2 (en])

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2531078Y2 (ja) * 1990-04-24 1997-04-02 鉱研工業株式会社 掘削装置

Also Published As

Publication number Publication date
JPS57174570U (en]) 1982-11-04

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