CA20953A - Rock drill - Google Patents

Rock drill

Info

Publication number
CA20953A
CA20953A CA000020953A CA20953DA CA20953A CA 20953 A CA20953 A CA 20953A CA 000020953 A CA000020953 A CA 000020953A CA 20953D A CA20953D A CA 20953DA CA 20953 A CA20953 A CA 20953A
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
CA000020953A
Other languages
French (fr)
Inventor
Charles S. Westbrook
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 CA20953A publication Critical patent/CA20953A/en
Expired legal-status Critical Current

Links

CA000020953A Rock drill Expired CA20953A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA20953T

Publications (1)

Publication Number Publication Date
CA20953A true CA20953A (en) 1885-01-23

Family

ID=45137496

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000020953A Expired CA20953A (en) Rock drill

Country Status (1)

Country Link
CA (1) CA20953A (en)

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