CA355445A - Couteau roulant de perforatrice a terre - Google Patents

Couteau roulant de perforatrice a terre

Info

Publication number
CA355445A
CA355445A CA355445A CA355445DA CA355445A CA 355445 A CA355445 A CA 355445A CA 355445 A CA355445 A CA 355445A CA 355445D A CA355445D A CA 355445DA CA 355445 A CA355445 A CA 355445A
Authority
CA
Canada
Prior art keywords
roller cutter
earth boring
boring drills
drills
earth
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
CA355445A
Other languages
English (en)
Inventor
Edward Reed Clarence
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA355445A publication Critical patent/CA355445A/fr
Expired legal-status Critical Current

Links

CA355445A Couteau roulant de perforatrice a terre Expired CA355445A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA355445T

Publications (1)

Publication Number Publication Date
CA355445A true CA355445A (fr) 1936-01-21

Family

ID=35343406

Family Applications (1)

Application Number Title Priority Date Filing Date
CA355445A Expired CA355445A (fr) Couteau roulant de perforatrice a terre

Country Status (1)

Country Link
CA (1) CA355445A (fr)

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