CA766636A - Telescoping drilling kelly - Google Patents

Telescoping drilling kelly

Info

Publication number
CA766636A
CA766636A CA766636A CA766636DA CA766636A CA 766636 A CA766636 A CA 766636A CA 766636 A CA766636 A CA 766636A CA 766636D A CA766636D A CA 766636DA CA 766636 A CA766636 A CA 766636A
Authority
CA
Canada
Prior art keywords
drilling kelly
telescoping
telescoping drilling
kelly
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
CA766636A
Inventor
R. Mayer James
D. Tipton Joe
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.)
Gardner Denver Inc
Original Assignee
Gardner Denver Inc
Publication date
Application granted granted Critical
Publication of CA766636A publication Critical patent/CA766636A/en
Expired legal-status Critical Current

Links

CA766636A Telescoping drilling kelly Expired CA766636A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA766636T

Publications (1)

Publication Number Publication Date
CA766636A true CA766636A (en) 1967-09-05

Family

ID=36210048

Family Applications (1)

Application Number Title Priority Date Filing Date
CA766636A Expired CA766636A (en) Telescoping drilling kelly

Country Status (1)

Country Link
CA (1) CA766636A (en)

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