CA397054A - Fleuret de perforatrice a roc - Google Patents

Fleuret de perforatrice a roc

Info

Publication number
CA397054A
CA397054A CA397054A CA397054DA CA397054A CA 397054 A CA397054 A CA 397054A CA 397054 A CA397054 A CA 397054A CA 397054D A CA397054D A CA 397054DA CA 397054 A CA397054 A CA 397054A
Authority
CA
Canada
Prior art keywords
drill bit
mining drill
rock mining
rock
bit
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
CA397054A
Other languages
English (en)
Inventor
George Maclean William
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 CA397054A publication Critical patent/CA397054A/fr
Expired legal-status Critical Current

Links

CA397054A Fleuret de perforatrice a roc Expired CA397054A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA397054T

Publications (1)

Publication Number Publication Date
CA397054A true CA397054A (fr) 1941-06-10

Family

ID=35407578

Family Applications (1)

Application Number Title Priority Date Filing Date
CA397054A Expired CA397054A (fr) Fleuret de perforatrice a roc

Country Status (1)

Country Link
CA (1) CA397054A (fr)

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