CA434669A - Perforatrice - Google Patents

Perforatrice

Info

Publication number
CA434669A
CA434669A CA434669A CA434669DA CA434669A CA 434669 A CA434669 A CA 434669A CA 434669 A CA434669 A CA 434669A CA 434669D A CA434669D A CA 434669DA CA 434669 A CA434669 A CA 434669A
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
CA434669A
Other languages
English (en)
Inventor
Parrott Fleming
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 CA434669A publication Critical patent/CA434669A/fr
Expired legal-status Critical Current

Links

CA434669A Perforatrice Expired CA434669A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA434669T

Publications (1)

Publication Number Publication Date
CA434669A true CA434669A (fr) 1946-05-14

Family

ID=35549298

Family Applications (1)

Application Number Title Priority Date Filing Date
CA434669A Expired CA434669A (fr) Perforatrice

Country Status (1)

Country Link
CA (1) CA434669A (fr)

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