CA537441A - Centralisateur d'acier de perceuse - Google Patents

Centralisateur d'acier de perceuse

Info

Publication number
CA537441A
CA537441A CA537441A CA537441DA CA537441A CA 537441 A CA537441 A CA 537441A CA 537441 A CA537441 A CA 537441A CA 537441D A CA537441D A CA 537441DA CA 537441 A CA537441 A CA 537441A
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
CA537441A
Other languages
English (en)
Inventor
F. Samhammer Donald
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.)
Chicago Pneumatic Tool Co LLC
Original Assignee
Chicago Pneumatic Tool Co LLC
Publication date
Application granted granted Critical
Publication of CA537441A publication Critical patent/CA537441A/fr
Expired legal-status Critical Current

Links

CA537441A Centralisateur d'acier de perceuse Expired CA537441A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA537441T

Publications (1)

Publication Number Publication Date
CA537441A true CA537441A (fr) 1957-02-26

Family

ID=35692075

Family Applications (1)

Application Number Title Priority Date Filing Date
CA537441A Expired CA537441A (fr) Centralisateur d'acier de perceuse

Country Status (1)

Country Link
CA (1) CA537441A (fr)

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