CA274386A - Perforatrice a rouleaux - Google Patents

Perforatrice a rouleaux

Info

Publication number
CA274386A
CA274386A CA274386A CA274386DA CA274386A CA 274386 A CA274386 A CA 274386A CA 274386 A CA274386 A CA 274386A CA 274386D A CA274386D A CA 274386DA CA 274386 A CA274386 A CA 274386A
Authority
CA
Canada
Prior art keywords
boring drill
roller boring
roller
drill
boring
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
CA274386A
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 CA274386A publication Critical patent/CA274386A/fr
Expired legal-status Critical Current

Links

CA274386A Perforatrice a rouleaux Expired CA274386A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA274386T

Publications (1)

Publication Number Publication Date
CA274386A true CA274386A (fr) 1927-10-04

Family

ID=35204418

Family Applications (1)

Application Number Title Priority Date Filing Date
CA274386A Expired CA274386A (fr) Perforatrice a rouleaux

Country Status (1)

Country Link
CA (1) CA274386A (fr)

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