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CA538658A - Outil a percer le roc - Google Patents

Outil a percer le roc

Info

Publication number
CA538658A
CA538658A CA538658A CA538658DA CA538658A CA 538658 A CA538658 A CA 538658A CA 538658 A CA538658 A CA 538658A CA 538658D A CA538658D A CA 538658DA CA 538658 A CA538658 A CA 538658A
Authority
CA
Canada
Prior art keywords
drilling tool
rock drilling
rock
tool
drilling
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
CA538658A
Other languages
English (en)
Inventor
E. Coates Robert
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.)
Canadian Ingersoll Rand Co Ltd
Original Assignee
Canadian Ingersoll Rand Co Ltd
Publication date
Application granted granted Critical
Publication of CA538658A publication Critical patent/CA538658A/fr
Expired legal-status Critical Current

Links

CA538658A Outil a percer le roc Expired CA538658A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA538658T

Publications (1)

Publication Number Publication Date
CA538658A true CA538658A (fr) 1957-03-26

Family

ID=35693298

Family Applications (1)

Application Number Title Priority Date Filing Date
CA538658A Expired CA538658A (fr) Outil a percer le roc

Country Status (1)

Country Link
CA (1) CA538658A (fr)

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