CA212776A - Rock drilling machine - Google Patents

Rock drilling machine

Info

Publication number
CA212776A
CA212776A CA212776A CA212776DA CA212776A CA 212776 A CA212776 A CA 212776A CA 212776 A CA212776 A CA 212776A CA 212776D A CA212776D A CA 212776DA CA 212776 A CA212776 A CA 212776A
Authority
CA
Canada
Prior art keywords
drilling machine
rock drilling
rock
machine
drilling
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
CA212776A
Other languages
French (fr)
Inventor
De Hele St. Stephens Raynar
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.)
CAMBORNE
Original Assignee
CAMBORNE
Publication date
Application granted granted Critical
Publication of CA212776A publication Critical patent/CA212776A/en
Expired legal-status Critical Current

Links

CA212776A Rock drilling machine Expired CA212776A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA212776T

Publications (1)

Publication Number Publication Date
CA212776A true CA212776A (en) 1921-08-02

Family

ID=35107220

Family Applications (1)

Application Number Title Priority Date Filing Date
CA212776A Expired CA212776A (en) Rock drilling machine

Country Status (1)

Country Link
CA (1) CA212776A (en)

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