JPS6340548Y2 - - Google Patents

Info

Publication number
JPS6340548Y2
JPS6340548Y2 JP1983202352U JP20235283U JPS6340548Y2 JP S6340548 Y2 JPS6340548 Y2 JP S6340548Y2 JP 1983202352 U JP1983202352 U JP 1983202352U JP 20235283 U JP20235283 U JP 20235283U JP S6340548 Y2 JPS6340548 Y2 JP S6340548Y2
Authority
JP
Japan
Prior art keywords
drifter
rod
water jet
drilling
blast hole
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
JP1983202352U
Other languages
English (en)
Japanese (ja)
Other versions
JPS60107192U (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 JP20235283U priority Critical patent/JPS60107192U/ja
Publication of JPS60107192U publication Critical patent/JPS60107192U/ja
Application granted granted Critical
Publication of JPS6340548Y2 publication Critical patent/JPS6340548Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
JP20235283U 1983-12-23 1983-12-23 穿孔装置 Granted JPS60107192U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20235283U JPS60107192U (ja) 1983-12-23 1983-12-23 穿孔装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20235283U JPS60107192U (ja) 1983-12-23 1983-12-23 穿孔装置

Publications (2)

Publication Number Publication Date
JPS60107192U JPS60107192U (ja) 1985-07-20
JPS6340548Y2 true JPS6340548Y2 (en]) 1988-10-24

Family

ID=30764799

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20235283U Granted JPS60107192U (ja) 1983-12-23 1983-12-23 穿孔装置

Country Status (1)

Country Link
JP (1) JPS60107192U (en])

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5510754B2 (en]) * 1975-02-26 1980-03-18
JPS6239195Y2 (en]) * 1981-02-02 1987-10-06

Also Published As

Publication number Publication date
JPS60107192U (ja) 1985-07-20

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