CA461557A - Machine pour l'exploitation de la houille - Google Patents

Machine pour l'exploitation de la houille

Info

Publication number
CA461557A
CA461557A CA461557A CA461557DA CA461557A CA 461557 A CA461557 A CA 461557A CA 461557 A CA461557 A CA 461557A CA 461557D A CA461557D A CA 461557DA CA 461557 A CA461557 A CA 461557A
Authority
CA
Canada
Prior art keywords
coal mining
mining machine
coal
machine
mining
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
CA461557A
Other languages
English (en)
Inventor
Johnson Robert
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 CA461557A publication Critical patent/CA461557A/fr
Expired legal-status Critical Current

Links

CA461557A Machine pour l'exploitation de la houille Expired CA461557A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA461557T

Publications (1)

Publication Number Publication Date
CA461557A true CA461557A (fr) 1949-12-06

Family

ID=35591246

Family Applications (1)

Application Number Title Priority Date Filing Date
CA461557A Expired CA461557A (fr) Machine pour l'exploitation de la houille

Country Status (1)

Country Link
CA (1) CA461557A (fr)

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