CA419911A - Perforatrice a roc - Google Patents

Perforatrice a roc

Info

Publication number
CA419911A
CA419911A CA419911A CA419911DA CA419911A CA 419911 A CA419911 A CA 419911A CA 419911 A CA419911 A CA 419911A CA 419911D A CA419911D A CA 419911DA CA 419911 A CA419911 A CA 419911A
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
CA419911A
Other languages
English (en)
Inventor
Alfred Bennett Hutton Lionel
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 CA419911A publication Critical patent/CA419911A/fr
Expired legal-status Critical Current

Links

CA419911A Perforatrice a roc Expired CA419911A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA419911T

Publications (1)

Publication Number Publication Date
CA419911A true CA419911A (fr) 1944-05-02

Family

ID=35529205

Family Applications (1)

Application Number Title Priority Date Filing Date
CA419911A Expired CA419911A (fr) Perforatrice a roc

Country Status (1)

Country Link
CA (1) CA419911A (fr)

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