CA384140A - Fleuret de perforatrice a roc - Google Patents

Fleuret de perforatrice a roc

Info

Publication number
CA384140A
CA384140A CA384140A CA384140DA CA384140A CA 384140 A CA384140 A CA 384140A CA 384140 A CA384140 A CA 384140A CA 384140D A CA384140D A CA 384140DA CA 384140 A CA384140 A CA 384140A
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
CA384140A
Other languages
English (en)
Inventor
Knutson Gustav
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.)
INTERNATIONAL DETACHABLE BITS AND EQUIPMENT
Original Assignee
INTERNATIONAL DETACHABLE BITS AND EQUIPMENT
Publication date
Application granted granted Critical
Publication of CA384140A publication Critical patent/CA384140A/fr
Expired legal-status Critical Current

Links

CA384140A Fleuret de perforatrice a roc Expired CA384140A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA384140T

Publications (1)

Publication Number Publication Date
CA384140A true CA384140A (fr) 1939-09-19

Family

ID=35389370

Family Applications (1)

Application Number Title Priority Date Filing Date
CA384140A Expired CA384140A (fr) Fleuret de perforatrice a roc

Country Status (1)

Country Link
CA (1) CA384140A (fr)

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