CA657376A - Rock drill collar - Google Patents

Rock drill collar

Info

Publication number
CA657376A
CA657376A CA657376A CA657376DA CA657376A CA 657376 A CA657376 A CA 657376A CA 657376 A CA657376 A CA 657376A CA 657376D A CA657376D A CA 657376DA CA 657376 A CA657376 A CA 657376A
Authority
CA
Canada
Prior art keywords
drill collar
rock drill
rock
collar
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
CA657376A
Inventor
L. Mclean Ronald
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.)
Lord Manufacturing Co
Original Assignee
Lord Manufacturing Co
Publication date
Application granted granted Critical
Publication of CA657376A publication Critical patent/CA657376A/en
Expired legal-status Critical Current

Links

CA657376A Rock drill collar Expired CA657376A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA657376T

Publications (1)

Publication Number Publication Date
CA657376A true CA657376A (en) 1963-02-05

Family

ID=35950721

Family Applications (1)

Application Number Title Priority Date Filing Date
CA657376A Expired CA657376A (en) Rock drill collar

Country Status (1)

Country Link
CA (1) CA657376A (en)

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