CA760173A - Roof supports for mine workings - Google Patents

Roof supports for mine workings

Info

Publication number
CA760173A
CA760173A CA760173A CA760173DA CA760173A CA 760173 A CA760173 A CA 760173A CA 760173 A CA760173 A CA 760173A CA 760173D A CA760173D A CA 760173DA CA 760173 A CA760173 A CA 760173A
Authority
CA
Canada
Prior art keywords
roof supports
mine workings
workings
mine
roof
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
CA760173A
Inventor
M. Groetschel Karl
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 CA760173A publication Critical patent/CA760173A/en
Expired legal-status Critical Current

Links

CA760173A Roof supports for mine workings Expired CA760173A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA760173T

Publications (1)

Publication Number Publication Date
CA760173A true CA760173A (en) 1967-06-06

Family

ID=36197279

Family Applications (1)

Application Number Title Priority Date Filing Date
CA760173A Expired CA760173A (en) Roof supports for mine workings

Country Status (1)

Country Link
CA (1) CA760173A (en)

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