CA400655A - Centralisateur de la meche d'acier de perforatrice - Google Patents

Centralisateur de la meche d'acier de perforatrice

Info

Publication number
CA400655A
CA400655A CA400655A CA400655DA CA400655A CA 400655 A CA400655 A CA 400655A CA 400655 A CA400655 A CA 400655A CA 400655D A CA400655D A CA 400655DA CA 400655 A CA400655 A CA 400655A
Authority
CA
Canada
Prior art keywords
drill steel
steel centralizer
centralizer
drill
steel
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
CA400655A
Other languages
English (en)
Inventor
Henry Fuehrer George
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
Publication date
Application granted granted Critical
Publication of CA400655A publication Critical patent/CA400655A/fr
Expired legal-status Critical Current

Links

CA400655A Centralisateur de la meche d'acier de perforatrice Expired CA400655A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA400655T

Publications (1)

Publication Number Publication Date
CA400655A true CA400655A (fr) 1941-11-11

Family

ID=35411101

Family Applications (1)

Application Number Title Priority Date Filing Date
CA400655A Expired CA400655A (fr) Centralisateur de la meche d'acier de perforatrice

Country Status (1)

Country Link
CA (1) CA400655A (fr)

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