CA518966A - Pulldown device for rotary drilling apparatus - Google Patents

Pulldown device for rotary drilling apparatus

Info

Publication number
CA518966A
CA518966A CA518966A CA518966DA CA518966A CA 518966 A CA518966 A CA 518966A CA 518966 A CA518966 A CA 518966A CA 518966D A CA518966D A CA 518966DA CA 518966 A CA518966 A CA 518966A
Authority
CA
Canada
Prior art keywords
rotary drilling
drilling apparatus
pulldown device
pulldown
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
CA518966A
Other languages
French (fr)
Inventor
L. Alexander Emmett
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.)
GEORGE E FAILING SUPPLY CO
Original Assignee
GEORGE E FAILING SUPPLY CO
Publication date
Application granted granted Critical
Publication of CA518966A publication Critical patent/CA518966A/en
Expired legal-status Critical Current

Links

CA518966A Pulldown device for rotary drilling apparatus Expired CA518966A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA518966T

Publications (1)

Publication Number Publication Date
CA518966A true CA518966A (en) 1955-11-29

Family

ID=35672169

Family Applications (1)

Application Number Title Priority Date Filing Date
CA518966A Expired CA518966A (en) Pulldown device for rotary drilling apparatus

Country Status (1)

Country Link
CA (1) CA518966A (en)

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