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CA8142A - Perfectionnements aux forets de mines - Google Patents

Perfectionnements aux forets de mines

Info

Publication number
CA8142A
CA8142A CA000008142A CA8142DA CA8142A CA 8142 A CA8142 A CA 8142A CA 000008142 A CA000008142 A CA 000008142A CA 8142D A CA8142D A CA 8142DA CA 8142 A CA8142 A CA 8142A
Authority
CA
Canada
Prior art keywords
rock drills
drills
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
CA000008142A
Other languages
English (en)
Inventor
Uriah Cummings
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 CA8142A publication Critical patent/CA8142A/fr
Expired legal-status Critical Current

Links

CA000008142A Perfectionnements aux forets de mines Expired CA8142A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA8142T

Publications (1)

Publication Number Publication Date
CA8142A true CA8142A (fr) 1877-11-27

Family

ID=45124690

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000008142A Expired CA8142A (fr) Perfectionnements aux forets de mines

Country Status (1)

Country Link
CA (1) CA8142A (fr)

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