CA840749A - Rock drills - Google Patents

Rock drills

Info

Publication number
CA840749A
CA840749A CA840749A CA840749DA CA840749A CA 840749 A CA840749 A CA 840749A CA 840749 A CA840749 A CA 840749A CA 840749D A CA840749D A CA 840749DA CA 840749 A CA840749 A CA 840749A
Authority
CA
Canada
Prior art keywords
rock drills
drills
rock
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
CA840749A
Inventor
Ishihara Masamitsu
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.)
ISHIHARA KIKAI KOGYO CO
Original Assignee
ISHIHARA KIKAI KOGYO CO
Publication date
Application granted granted Critical
Publication of CA840749A publication Critical patent/CA840749A/en
Expired legal-status Critical Current

Links

CA840749A Rock drills Expired CA840749A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA840749T

Publications (1)

Publication Number Publication Date
CA840749A true CA840749A (en) 1970-05-05

Family

ID=36324949

Family Applications (1)

Application Number Title Priority Date Filing Date
CA840749A Expired CA840749A (en) Rock drills

Country Status (1)

Country Link
CA (1) CA840749A (en)

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