CA18751A - Rock drill - Google Patents

Rock drill

Info

Publication number
CA18751A
CA18751A CA000018751A CA18751DA CA18751A CA 18751 A CA18751 A CA 18751A CA 000018751 A CA000018751 A CA 000018751A CA 18751D A CA18751D A CA 18751DA CA 18751 A CA18751 A CA 18751A
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
CA000018751A
Other languages
French (fr)
Inventor
Edwin A. Armstrong
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 CA18751A publication Critical patent/CA18751A/en
Expired legal-status Critical Current

Links

CA000018751A Rock drill Expired CA18751A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA18751T

Publications (1)

Publication Number Publication Date
CA18751A true CA18751A (en) 1884-03-01

Family

ID=45135294

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000018751A Expired CA18751A (en) Rock drill

Country Status (1)

Country Link
CA (1) CA18751A (en)

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