CA469813A - Rock drill bits having hard inserts forming cutting edges - Google Patents

Rock drill bits having hard inserts forming cutting edges

Info

Publication number
CA469813A
CA469813A CA469813A CA469813DA CA469813A CA 469813 A CA469813 A CA 469813A CA 469813 A CA469813 A CA 469813A CA 469813D A CA469813D A CA 469813DA CA 469813 A CA469813 A CA 469813A
Authority
CA
Canada
Prior art keywords
cutting edges
drill bits
rock drill
forming cutting
hard inserts
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
CA469813A
Other languages
French (fr)
Inventor
Andreas Smuts Malherbe Johannes
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 CA469813A publication Critical patent/CA469813A/en
Expired legal-status Critical Current

Links

CA469813A Rock drill bits having hard inserts forming cutting edges Expired CA469813A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA469813T

Publications (1)

Publication Number Publication Date
CA469813A true CA469813A (en) 1950-12-05

Family

ID=35603752

Family Applications (1)

Application Number Title Priority Date Filing Date
CA469813A Expired CA469813A (en) Rock drill bits having hard inserts forming cutting edges

Country Status (1)

Country Link
CA (1) CA469813A (en)

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