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CA416976A - Fleuret arque de perforatrice a roc - Google Patents

Fleuret arque de perforatrice a roc

Info

Publication number
CA416976A
CA416976A CA416976A CA416976DA CA416976A CA 416976 A CA416976 A CA 416976A CA 416976 A CA416976 A CA 416976A CA 416976D A CA416976D A CA 416976DA CA 416976 A CA416976 A CA 416976A
Authority
CA
Canada
Prior art keywords
rock drill
bit point
arc bit
drill arc
point
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
CA416976A
Other languages
English (en)
Inventor
B. Brown Philip
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 CA416976A publication Critical patent/CA416976A/fr
Expired legal-status Critical Current

Links

CA416976A Fleuret arque de perforatrice a roc Expired CA416976A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA416976T

Publications (1)

Publication Number Publication Date
CA416976A true CA416976A (fr) 1943-12-14

Family

ID=35526214

Family Applications (1)

Application Number Title Priority Date Filing Date
CA416976A Expired CA416976A (fr) Fleuret arque de perforatrice a roc

Country Status (1)

Country Link
CA (1) CA416976A (fr)

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