CA983008A - Retrieving and lowering system for a core barrel - Google Patents

Retrieving and lowering system for a core barrel

Info

Publication number
CA983008A
CA983008A CA209,269A CA209269A CA983008A CA 983008 A CA983008 A CA 983008A CA 209269 A CA209269 A CA 209269A CA 983008 A CA983008 A CA 983008A
Authority
CA
Canada
Prior art keywords
retrieving
core barrel
lowering system
lowering
barrel
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
CA209,269A
Other versions
CA209269S (en
Inventor
Tiete O. Wolda
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.)
Dresser Industrial Products Ltd
Original Assignee
Dresser Industrial Products Ltd
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 CA142,493A external-priority patent/CA977329A/en
Application filed by Dresser Industrial Products Ltd filed Critical Dresser Industrial Products Ltd
Priority to CA209,269A priority Critical patent/CA983008A/en
Application granted granted Critical
Publication of CA983008A publication Critical patent/CA983008A/en
Expired legal-status Critical Current

Links

CA209,269A 1971-06-18 1974-09-16 Retrieving and lowering system for a core barrel Expired CA983008A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA209,269A CA983008A (en) 1971-06-18 1974-09-16 Retrieving and lowering system for a core barrel

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US15432071A 1971-06-18 1971-06-18
CA142,493A CA977329A (en) 1971-06-18 1972-05-18 Retrieving and lowering system for a core barrel
CA209,269A CA983008A (en) 1971-06-18 1974-09-16 Retrieving and lowering system for a core barrel

Publications (1)

Publication Number Publication Date
CA983008A true CA983008A (en) 1976-02-03

Family

ID=27162015

Family Applications (1)

Application Number Title Priority Date Filing Date
CA209,269A Expired CA983008A (en) 1971-06-18 1974-09-16 Retrieving and lowering system for a core barrel

Country Status (1)

Country Link
CA (1) CA983008A (en)

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