CA416034A - Perforatrice a roc - Google Patents

Perforatrice a roc

Info

Publication number
CA416034A
CA416034A CA416034A CA416034DA CA416034A CA 416034 A CA416034 A CA 416034A CA 416034 A CA416034 A CA 416034A CA 416034D A CA416034D A CA 416034DA CA 416034 A CA416034 A CA 416034A
Authority
CA
Canada
Prior art keywords
rock drill
drill
rock
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
CA416034A
Other languages
English (en)
Inventor
C. Curtis John
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.)
Sullivan Machinery Co
Original Assignee
Sullivan Machinery Co
Publication date
Application granted granted Critical
Publication of CA416034A publication Critical patent/CA416034A/fr
Expired legal-status Critical Current

Links

CA416034A Perforatrice a roc Expired CA416034A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA416034T

Publications (1)

Publication Number Publication Date
CA416034A true CA416034A (fr) 1943-10-26

Family

ID=35525249

Family Applications (1)

Application Number Title Priority Date Filing Date
CA416034A Expired CA416034A (fr) Perforatrice a roc

Country Status (1)

Country Link
CA (1) CA416034A (fr)

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