CA468991A - Rock drill bits - Google Patents

Rock drill bits

Info

Publication number
CA468991A
CA468991A CA468991A CA468991DA CA468991A CA 468991 A CA468991 A CA 468991A CA 468991 A CA468991 A CA 468991A CA 468991D A CA468991D A CA 468991DA CA 468991 A CA468991 A CA 468991A
Authority
CA
Canada
Prior art keywords
drill bits
rock drill
rock
bits
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
CA468991A
Other languages
French (fr)
Inventor
T. G. Wilsher Samuel
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.)
CHARLES E SELEY
Original Assignee
CHARLES E SELEY
Publication date
Application granted granted Critical
Publication of CA468991A publication Critical patent/CA468991A/en
Expired legal-status Critical Current

Links

CA468991A Rock drill bits Expired CA468991A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA468991T

Publications (1)

Publication Number Publication Date
CA468991A true CA468991A (en) 1950-10-24

Family

ID=35602925

Family Applications (1)

Application Number Title Priority Date Filing Date
CA468991A Expired CA468991A (en) Rock drill bits

Country Status (1)

Country Link
CA (1) CA468991A (en)

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