CA538121A - Haveuses - Google Patents

Haveuses

Info

Publication number
CA538121A
CA538121A CA538121A CA538121DA CA538121A CA 538121 A CA538121 A CA 538121A CA 538121 A CA538121 A CA 538121A CA 538121D A CA538121D A CA 538121DA CA 538121 A CA538121 A CA 538121A
Authority
CA
Canada
Prior art keywords
cutters
coal
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
CA538121A
Other languages
English (en)
Inventor
Jackson David
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.)
Mavor and Coulson Ltd
Original Assignee
Mavor and Coulson Ltd
Publication date
Application granted granted Critical
Publication of CA538121A publication Critical patent/CA538121A/fr
Expired legal-status Critical Current

Links

CA538121A Haveuses Expired CA538121A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA538121T

Publications (1)

Publication Number Publication Date
CA538121A true CA538121A (fr) 1957-03-12

Family

ID=35692756

Family Applications (1)

Application Number Title Priority Date Filing Date
CA538121A Expired CA538121A (fr) Haveuses

Country Status (1)

Country Link
CA (1) CA538121A (fr)

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