CA320587A - Appareil de haveuse - Google Patents

Appareil de haveuse

Info

Publication number
CA320587A
CA320587A CA320587A CA320587DA CA320587A CA 320587 A CA320587 A CA 320587A CA 320587 A CA320587 A CA 320587A CA 320587D A CA320587D A CA 320587DA CA 320587 A CA320587 A CA 320587A
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
CA320587A
Other languages
English (en)
Inventor
D. Levin Nils
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 CA320587A publication Critical patent/CA320587A/fr
Expired legal-status Critical Current

Links

CA320587A Appareil de haveuse Expired CA320587A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA320587T

Publications (1)

Publication Number Publication Date
CA320587A true CA320587A (fr) 1932-03-15

Family

ID=35281141

Family Applications (1)

Application Number Title Priority Date Filing Date
CA320587A Expired CA320587A (fr) Appareil de haveuse

Country Status (1)

Country Link
CA (1) CA320587A (fr)

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