CA318079A - Appareil d'exploitation du charbon - Google Patents

Appareil d'exploitation du charbon

Info

Publication number
CA318079A
CA318079A CA318079A CA318079DA CA318079A CA 318079 A CA318079 A CA 318079A CA 318079 A CA318079 A CA 318079A CA 318079D A CA318079D A CA 318079DA CA 318079 A CA318079 A CA 318079A
Authority
CA
Canada
Prior art keywords
coal mining
mining apparatus
coal
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
CA318079A
Other languages
English (en)
Inventor
D. Levin Nils
Feodor Muller Ernest
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.)
Jeffrey Manufacturing Co
Original Assignee
Jeffrey Manufacturing Co
Publication date
Application granted granted Critical
Publication of CA318079A publication Critical patent/CA318079A/fr
Expired legal-status Critical Current

Links

CA318079A Appareil d'exploitation du charbon Expired CA318079A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA318079T

Publications (1)

Publication Number Publication Date
CA318079A true CA318079A (fr) 1931-12-15

Family

ID=35278635

Family Applications (1)

Application Number Title Priority Date Filing Date
CA318079A Expired CA318079A (fr) Appareil d'exploitation du charbon

Country Status (1)

Country Link
CA (1) CA318079A (fr)

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