CA627821A - Rock drill jumbo for shaft drilling - Google Patents

Rock drill jumbo for shaft drilling

Info

Publication number
CA627821A
CA627821A CA627821A CA627821DA CA627821A CA 627821 A CA627821 A CA 627821A CA 627821 A CA627821 A CA 627821A CA 627821D A CA627821D A CA 627821DA CA 627821 A CA627821 A CA 627821A
Authority
CA
Canada
Prior art keywords
rock drill
drill jumbo
shaft drilling
drilling
shaft
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
CA627821A
Inventor
C. O'leary Paul
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.)
Machinery Center Inc
Original Assignee
Machinery Center Inc
Publication date
Application granted granted Critical
Publication of CA627821A publication Critical patent/CA627821A/en
Expired legal-status Critical Current

Links

CA627821A Rock drill jumbo for shaft drilling Expired CA627821A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA627821T

Publications (1)

Publication Number Publication Date
CA627821A true CA627821A (en) 1961-09-19

Family

ID=35882991

Family Applications (1)

Application Number Title Priority Date Filing Date
CA627821A Expired CA627821A (en) Rock drill jumbo for shaft drilling

Country Status (1)

Country Link
CA (1) CA627821A (en)

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