CA489752A - Machines de creusement de ballasts - Google Patents

Machines de creusement de ballasts

Info

Publication number
CA489752A
CA489752A CA489752A CA489752DA CA489752A CA 489752 A CA489752 A CA 489752A CA 489752 A CA489752 A CA 489752A CA 489752D A CA489752D A CA 489752DA CA 489752 A CA489752 A CA 489752A
Authority
CA
Canada
Prior art keywords
digging machines
ballast digging
ballast
machines
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
CA489752A
Other languages
English (en)
Inventor
H. Philbrick Frank
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 CA489752A publication Critical patent/CA489752A/fr
Expired legal-status Critical Current

Links

CA489752A Machines de creusement de ballasts Expired CA489752A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA489752T

Publications (1)

Publication Number Publication Date
CA489752A true CA489752A (fr) 1953-01-20

Family

ID=35629481

Family Applications (1)

Application Number Title Priority Date Filing Date
CA489752A Expired CA489752A (fr) Machines de creusement de ballasts

Country Status (1)

Country Link
CA (1) CA489752A (fr)

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