JPS51151603A - Oneeuse bit device for drilling rock of weak ground - Google Patents

Oneeuse bit device for drilling rock of weak ground

Info

Publication number
JPS51151603A
JPS51151603A JP7561975A JP7561975A JPS51151603A JP S51151603 A JPS51151603 A JP S51151603A JP 7561975 A JP7561975 A JP 7561975A JP 7561975 A JP7561975 A JP 7561975A JP S51151603 A JPS51151603 A JP S51151603A
Authority
JP
Japan
Prior art keywords
oneeuse
bit device
drilling rock
weak ground
weak
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
JP7561975A
Other languages
English (en)
Inventor
Yoshiichi Mikami
Tetsuo Sawashima
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.)
Furukawa Kogyo Co Ltd
Original Assignee
Furukawa Kogyo Co 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 Furukawa Kogyo Co Ltd filed Critical Furukawa Kogyo Co Ltd
Priority to JP7561975A priority Critical patent/JPS51151603A/ja
Publication of JPS51151603A publication Critical patent/JPS51151603A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP7561975A 1975-06-23 1975-06-23 Oneeuse bit device for drilling rock of weak ground Pending JPS51151603A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7561975A JPS51151603A (en) 1975-06-23 1975-06-23 Oneeuse bit device for drilling rock of weak ground

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7561975A JPS51151603A (en) 1975-06-23 1975-06-23 Oneeuse bit device for drilling rock of weak ground

Publications (1)

Publication Number Publication Date
JPS51151603A true JPS51151603A (en) 1976-12-27

Family

ID=13581395

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7561975A Pending JPS51151603A (en) 1975-06-23 1975-06-23 Oneeuse bit device for drilling rock of weak ground

Country Status (1)

Country Link
JP (1) JPS51151603A (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1170609A (en) * 1965-12-08 1969-11-12 Stabilator Ab A Drill Device for Drilling Earth and Rock
JPS501503B1 (ja) * 1969-04-08 1975-01-18

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1170609A (en) * 1965-12-08 1969-11-12 Stabilator Ab A Drill Device for Drilling Earth and Rock
JPS501503B1 (ja) * 1969-04-08 1975-01-18

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