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CA757505A - Automatic control device for drilling apparatus - Google Patents

Automatic control device for drilling apparatus

Info

Publication number
CA757505A
CA757505A CA757505A CA757505DA CA757505A CA 757505 A CA757505 A CA 757505A CA 757505 A CA757505 A CA 757505A CA 757505D A CA757505D A CA 757505DA CA 757505 A CA757505 A CA 757505A
Authority
CA
Canada
Prior art keywords
control device
automatic control
drilling apparatus
drilling
automatic
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
CA757505A
Inventor
O. Melton James
M. Carpenter Irvin
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.)
GEOLOGRAPH Co
Original Assignee
GEOLOGRAPH Co
Publication date
Application granted granted Critical
Publication of CA757505A publication Critical patent/CA757505A/en
Expired legal-status Critical Current

Links

CA757505A Automatic control device for drilling apparatus Expired CA757505A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA757505T

Publications (1)

Publication Number Publication Date
CA757505A true CA757505A (en) 1967-04-25

Family

ID=36194611

Family Applications (1)

Application Number Title Priority Date Filing Date
CA757505A Expired CA757505A (en) Automatic control device for drilling apparatus

Country Status (1)

Country Link
CA (1) CA757505A (en)

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