CA988921A - Underreamer - Google Patents

Underreamer

Info

Publication number
CA988921A
CA988921A CA226,991A CA226991A CA988921A CA 988921 A CA988921 A CA 988921A CA 226991 A CA226991 A CA 226991A CA 988921 A CA988921 A CA 988921A
Authority
CA
Canada
Prior art keywords
underreamer
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
CA226,991A
Inventor
John H. Furse
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.)
Servco Co
Original Assignee
Servco Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US00323125A external-priority patent/US3817339A/en
Application filed by Servco Co filed Critical Servco Co
Priority to CA226,991A priority Critical patent/CA988921A/en
Application granted granted Critical
Publication of CA988921A publication Critical patent/CA988921A/en
Expired legal-status Critical Current

Links

CA226,991A 1973-01-12 1975-05-09 Underreamer Expired CA988921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA226,991A CA988921A (en) 1973-01-12 1975-05-09 Underreamer

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US00323125A US3817339A (en) 1973-01-12 1973-01-12 Underreamer
CA188,331A CA988920A (en) 1973-01-12 1973-12-17 Underreamer
CA226,991A CA988921A (en) 1973-01-12 1975-05-09 Underreamer

Publications (1)

Publication Number Publication Date
CA988921A true CA988921A (en) 1976-05-11

Family

ID=27163212

Family Applications (1)

Application Number Title Priority Date Filing Date
CA226,991A Expired CA988921A (en) 1973-01-12 1975-05-09 Underreamer

Country Status (1)

Country Link
CA (1) CA988921A (en)

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