JPS63141280U - - Google Patents

Info

Publication number
JPS63141280U
JPS63141280U JP3312987U JP3312987U JPS63141280U JP S63141280 U JPS63141280 U JP S63141280U JP 3312987 U JP3312987 U JP 3312987U JP 3312987 U JP3312987 U JP 3312987U JP S63141280 U JPS63141280 U JP S63141280U
Authority
JP
Japan
Prior art keywords
bit
auger
horizontal hole
drill bit
core
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.)
Pending
Application number
JP3312987U
Other languages
English (en)
Japanese (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 JP3312987U priority Critical patent/JPS63141280U/ja
Publication of JPS63141280U publication Critical patent/JPS63141280U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP3312987U 1987-03-09 1987-03-09 Pending JPS63141280U (enExample)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3312987U JPS63141280U (enExample) 1987-03-09 1987-03-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3312987U JPS63141280U (enExample) 1987-03-09 1987-03-09

Publications (1)

Publication Number Publication Date
JPS63141280U true JPS63141280U (enExample) 1988-09-16

Family

ID=30840449

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3312987U Pending JPS63141280U (enExample) 1987-03-09 1987-03-09

Country Status (1)

Country Link
JP (1) JPS63141280U (enExample)

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