CA425686A - Tige et manchon de foreuse - Google Patents

Tige et manchon de foreuse

Info

Publication number
CA425686A
CA425686A CA425686A CA425686DA CA425686A CA 425686 A CA425686 A CA 425686A CA 425686 A CA425686 A CA 425686A CA 425686D A CA425686D A CA 425686DA CA 425686 A CA425686 A CA 425686A
Authority
CA
Canada
Prior art keywords
bushing
drill rod
drill
rod
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
CA425686A
Other languages
English (en)
Inventor
Thomas Caldwell Walter
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.)
GEORGE E FAILING SUPPLY Co
Original Assignee
GEORGE E FAILING SUPPLY Co
Publication date
Application granted granted Critical
Publication of CA425686A publication Critical patent/CA425686A/fr
Expired legal-status Critical Current

Links

CA425686A Tige et manchon de foreuse Expired CA425686A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA425686T

Publications (1)

Publication Number Publication Date
CA425686A true CA425686A (fr) 1945-02-20

Family

ID=35536707

Family Applications (1)

Application Number Title Priority Date Filing Date
CA425686A Expired CA425686A (fr) Tige et manchon de foreuse

Country Status (1)

Country Link
CA (1) CA425686A (fr)

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