CA666822A - Rotary boring drill bit - Google Patents

Rotary boring drill bit

Info

Publication number
CA666822A
CA666822A CA666822A CA666822DA CA666822A CA 666822 A CA666822 A CA 666822A CA 666822 A CA666822 A CA 666822A CA 666822D A CA666822D A CA 666822DA CA 666822 A CA666822 A CA 666822A
Authority
CA
Canada
Prior art keywords
drill bit
boring drill
rotary boring
rotary
bit
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
CA666822A
Inventor
A. Tidwell 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.)
TIDWELL BIT DEVELOPMENT Ltd
Original Assignee
TIDWELL BIT DEVELOPMENT Ltd
Publication date
Application granted granted Critical
Publication of CA666822A publication Critical patent/CA666822A/en
Expired legal-status Critical Current

Links

CA666822A Rotary boring drill bit Expired CA666822A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA666822T

Publications (1)

Publication Number Publication Date
CA666822A true CA666822A (en) 1963-07-16

Family

ID=35960952

Family Applications (1)

Application Number Title Priority Date Filing Date
CA666822A Expired CA666822A (en) Rotary boring drill bit

Country Status (1)

Country Link
CA (1) CA666822A (en)

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