CA249724A - Machine a percer des tunnels - Google Patents

Machine a percer des tunnels

Info

Publication number
CA249724A
CA249724A CA249724A CA249724DA CA249724A CA 249724 A CA249724 A CA 249724A CA 249724 A CA249724 A CA 249724A CA 249724D A CA249724D A CA 249724DA CA 249724 A CA249724 A CA 249724A
Authority
CA
Canada
Prior art keywords
machine
digging tunnels
tunnels
digging
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
CA249724A
Other languages
English (en)
Inventor
A. Chubbuck Burt
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 CA249724A publication Critical patent/CA249724A/fr
Expired legal-status Critical Current

Links

CA249724A Machine a percer des tunnels Expired CA249724A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA249724T

Publications (1)

Publication Number Publication Date
CA249724A true CA249724A (fr) 1925-05-19

Family

ID=35156698

Family Applications (1)

Application Number Title Priority Date Filing Date
CA249724A Expired CA249724A (fr) Machine a percer des tunnels

Country Status (1)

Country Link
CA (1) CA249724A (fr)

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