CA2291A - Machine a creuser les chambres des mines - Google Patents

Machine a creuser les chambres des mines

Info

Publication number
CA2291A
CA2291A CA000002291A CA2291DA CA2291A CA 2291 A CA2291 A CA 2291A CA 000002291 A CA000002291 A CA 000002291A CA 2291D A CA2291D A CA 2291DA CA 2291 A CA2291 A CA 2291A
Authority
CA
Canada
Prior art keywords
mines
beds
boring
machine
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
CA000002291A
Other languages
English (en)
Inventor
Darius W. Siprell
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 CA2291A publication Critical patent/CA2291A/fr
Expired legal-status Critical Current

Links

CA000002291A Machine a creuser les chambres des mines Expired CA2291A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2291T

Publications (1)

Publication Number Publication Date
CA2291A true CA2291A (fr) 1873-04-29

Family

ID=45118858

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000002291A Expired CA2291A (fr) Machine a creuser les chambres des mines

Country Status (1)

Country Link
CA (1) CA2291A (fr)

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