CA539784A - Perforatrice - Google Patents

Perforatrice

Info

Publication number
CA539784A
CA539784A CA539784A CA539784DA CA539784A CA 539784 A CA539784 A CA 539784A CA 539784 A CA539784 A CA 539784A CA 539784D A CA539784D A CA 539784DA CA 539784 A CA539784 A CA 539784A
Authority
CA
Canada
Prior art keywords
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
CA539784A
Other languages
English (en)
Inventor
Meutsch Adolf
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 CA539784A publication Critical patent/CA539784A/fr
Expired legal-status Critical Current

Links

CA539784A Perforatrice Expired CA539784A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA539784T

Publications (1)

Publication Number Publication Date
CA539784A true CA539784A (fr) 1957-04-23

Family

ID=35694436

Family Applications (1)

Application Number Title Priority Date Filing Date
CA539784A Expired CA539784A (fr) Perforatrice

Country Status (1)

Country Link
CA (1) CA539784A (fr)

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