CA542010A - Perforatrice - Google Patents

Perforatrice

Info

Publication number
CA542010A
CA542010A CA542010A CA542010DA CA542010A CA 542010 A CA542010 A CA 542010A CA 542010 A CA542010 A CA 542010A CA 542010D A CA542010D A CA 542010DA CA 542010 A CA542010 A CA 542010A
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
CA542010A
Other languages
English (en)
Inventor
Annesley Griffith
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.)
THROWAWAY BIT Co Ltd
Original Assignee
THROWAWAY BIT Co Ltd
Publication date
Application granted granted Critical
Publication of CA542010A publication Critical patent/CA542010A/fr
Expired legal-status Critical Current

Links

CA542010A Perforatrice Expired CA542010A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA542010T

Publications (1)

Publication Number Publication Date
CA542010A true CA542010A (fr) 1957-06-04

Family

ID=35699165

Family Applications (1)

Application Number Title Priority Date Filing Date
CA542010A Expired CA542010A (fr) Perforatrice

Country Status (1)

Country Link
CA (1) CA542010A (fr)

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