JPS63121693U - - Google Patents

Info

Publication number
JPS63121693U
JPS63121693U JP1311587U JP1311587U JPS63121693U JP S63121693 U JPS63121693 U JP S63121693U JP 1311587 U JP1311587 U JP 1311587U JP 1311587 U JP1311587 U JP 1311587U JP S63121693 U JPS63121693 U JP S63121693U
Authority
JP
Japan
Prior art keywords
boom
guide shell
angle
angle detector
drilling 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
JP1311587U
Other languages
English (en)
Japanese (ja)
Other versions
JPH061667Y2 (ja
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 JP1311587U priority Critical patent/JPH061667Y2/ja
Publication of JPS63121693U publication Critical patent/JPS63121693U/ja
Application granted granted Critical
Publication of JPH061667Y2 publication Critical patent/JPH061667Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)
JP1311587U 1987-01-31 1987-01-31 さく孔機の角度保持装置 Expired - Lifetime JPH061667Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1311587U JPH061667Y2 (ja) 1987-01-31 1987-01-31 さく孔機の角度保持装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1311587U JPH061667Y2 (ja) 1987-01-31 1987-01-31 さく孔機の角度保持装置

Publications (2)

Publication Number Publication Date
JPS63121693U true JPS63121693U (enrdf_load_stackoverflow) 1988-08-08
JPH061667Y2 JPH061667Y2 (ja) 1994-01-12

Family

ID=30801875

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1311587U Expired - Lifetime JPH061667Y2 (ja) 1987-01-31 1987-01-31 さく孔機の角度保持装置

Country Status (1)

Country Link
JP (1) JPH061667Y2 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH061667Y2 (ja) 1994-01-12

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