CA276361A - Meche de foreuse a roc - Google Patents

Meche de foreuse a roc

Info

Publication number
CA276361A
CA276361A CA276361A CA276361DA CA276361A CA 276361 A CA276361 A CA 276361A CA 276361 A CA276361 A CA 276361A CA 276361D A CA276361D A CA 276361DA CA 276361 A CA276361 A CA 276361A
Authority
CA
Canada
Prior art keywords
drill bit
rock drill
rock
bit
drill
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
CA276361A
Other languages
English (en)
Inventor
Allan Coaton Arthur
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA276361A publication Critical patent/CA276361A/fr
Expired legal-status Critical Current

Links

CA276361A Meche de foreuse a roc Expired CA276361A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA276361T

Publications (1)

Publication Number Publication Date
CA276361A true CA276361A (fr) 1927-12-20

Family

ID=35206393

Family Applications (1)

Application Number Title Priority Date Filing Date
CA276361A Expired CA276361A (fr) Meche de foreuse a roc

Country Status (1)

Country Link
CA (1) CA276361A (fr)

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