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CA250746A - Rotary drill - Google Patents

Rotary drill

Info

Publication number
CA250746A
CA250746A CA250746A CA250746DA CA250746A CA 250746 A CA250746 A CA 250746A CA 250746 A CA250746 A CA 250746A CA 250746D A CA250746D A CA 250746DA CA 250746 A CA250746 A CA 250746A
Authority
CA
Canada
Prior art keywords
rotary drill
drill
rotary
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
CA250746A
Other languages
French (fr)
Inventor
Stone Frederick
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.)
DIAMOND DRILL CONTRACTING CO
Original Assignee
DIAMOND DRILL CONTRACTING CO
Publication date
Application granted granted Critical
Publication of CA250746A publication Critical patent/CA250746A/en
Expired legal-status Critical Current

Links

CA250746A Rotary drill Expired CA250746A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA250746T

Publications (1)

Publication Number Publication Date
CA250746A true CA250746A (en) 1925-06-16

Family

ID=35157720

Family Applications (1)

Application Number Title Priority Date Filing Date
CA250746A Expired CA250746A (en) Rotary drill

Country Status (1)

Country Link
CA (1) CA250746A (en)

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