CA613886A - Rotary drilling bits - Google Patents

Rotary drilling bits

Info

Publication number
CA613886A
CA613886A CA613886A CA613886DA CA613886A CA 613886 A CA613886 A CA 613886A CA 613886 A CA613886 A CA 613886A CA 613886D A CA613886D A CA 613886DA CA 613886 A CA613886 A CA 613886A
Authority
CA
Canada
Prior art keywords
rotary drilling
drilling bits
bits
rotary
drilling
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
CA613886A
Inventor
A. White Thomas
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.)
HERBERT J HAWTHORNE
Original Assignee
HERBERT J HAWTHORNE
Publication date
Application granted granted Critical
Publication of CA613886A publication Critical patent/CA613886A/en
Expired legal-status Critical Current

Links

CA613886A Rotary drilling bits Expired CA613886A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA613886T

Publications (1)

Publication Number Publication Date
CA613886A true CA613886A (en) 1961-02-07

Family

ID=35856203

Family Applications (1)

Application Number Title Priority Date Filing Date
CA613886A Expired CA613886A (en) Rotary drilling bits

Country Status (1)

Country Link
CA (1) CA613886A (en)

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