CA514369A - Back circulator apparatus - Google Patents

Back circulator apparatus

Info

Publication number
CA514369A
CA514369A CA514369A CA514369DA CA514369A CA 514369 A CA514369 A CA 514369A CA 514369 A CA514369 A CA 514369A CA 514369D A CA514369D A CA 514369DA CA 514369 A CA514369 A CA 514369A
Authority
CA
Canada
Prior art keywords
circulator apparatus
back circulator
circulator
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
CA514369A
Other languages
French (fr)
Inventor
O. Johnston Mordica
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.)
Johnston Testers Inc
Original Assignee
Johnston Testers Inc
Publication date
Application granted granted Critical
Publication of CA514369A publication Critical patent/CA514369A/en
Expired legal-status Critical Current

Links

CA514369A Back circulator apparatus Expired CA514369A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA514369T

Publications (1)

Publication Number Publication Date
CA514369A true CA514369A (en) 1955-07-05

Family

ID=35665456

Family Applications (1)

Application Number Title Priority Date Filing Date
CA514369A Expired CA514369A (en) Back circulator apparatus

Country Status (1)

Country Link
CA (1) CA514369A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3070119A (en) * 1959-07-20 1962-12-25 Otis Eng Co Well tools

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3070119A (en) * 1959-07-20 1962-12-25 Otis Eng Co Well tools

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