CA8357A - Perfectionnements aux forets de mines - Google Patents

Perfectionnements aux forets de mines

Info

Publication number
CA8357A
CA8357A CA000008357A CA8357DA CA8357A CA 8357 A CA8357 A CA 8357A CA 000008357 A CA000008357 A CA 000008357A CA 8357D A CA8357D A CA 8357DA CA 8357 A CA8357 A CA 8357A
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
CA000008357A
Other languages
English (en)
Inventor
Henry C. Sergeant
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 CA8357A publication Critical patent/CA8357A/fr
Expired legal-status Critical Current

Links

CA000008357A Perfectionnements aux forets de mines Expired CA8357A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA8357T

Publications (1)

Publication Number Publication Date
CA8357A true CA8357A (fr) 1878-01-26

Family

ID=45124906

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000008357A Expired CA8357A (fr) Perfectionnements aux forets de mines

Country Status (1)

Country Link
CA (1) CA8357A (fr)

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