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CA757506A - Automatic control device for drilling apparatus - Google Patents

Automatic control device for drilling apparatus

Info

Publication number
CA757506A
CA757506A CA757506A CA757506DA CA757506A CA 757506 A CA757506 A CA 757506A CA 757506 A CA757506 A CA 757506A CA 757506D A CA757506D A CA 757506DA CA 757506 A CA757506 A CA 757506A
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
CA757506A
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 CA757506A publication Critical patent/CA757506A/en
Expired legal-status Critical Current

Links

CA757506A Automatic control device for drilling apparatus Expired CA757506A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA757506T

Publications (1)

Publication Number Publication Date
CA757506A true CA757506A (en) 1967-04-25

Family

ID=36194612

Family Applications (1)

Application Number Title Priority Date Filing Date
CA757506A Expired CA757506A (en) Automatic control device for drilling apparatus

Country Status (1)

Country Link
CA (1) CA757506A (en)

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