CA277649A - Perforatrice a roc - Google Patents

Perforatrice a roc

Info

Publication number
CA277649A
CA277649A CA277649A CA277649DA CA277649A CA 277649 A CA277649 A CA 277649A CA 277649 A CA277649 A CA 277649A CA 277649D A CA277649D A CA 277649DA CA 277649 A CA277649 A CA 277649A
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
CA277649A
Other languages
English (en)
Inventor
Trevillion Jenkin Oliver
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 CA277649A publication Critical patent/CA277649A/fr
Expired legal-status Critical Current

Links

CA277649A Perforatrice a roc Expired CA277649A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA277649T

Publications (1)

Publication Number Publication Date
CA277649A true CA277649A (fr) 1928-02-07

Family

ID=35210740

Family Applications (1)

Application Number Title Priority Date Filing Date
CA277649A Expired CA277649A (fr) Perforatrice a roc

Country Status (1)

Country Link
CA (1) CA277649A (fr)

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