CA893440A - Roof support of underground mines and openings - Google Patents

Roof support of underground mines and openings

Info

Publication number
CA893440A
CA893440A CA893440A CA893440DA CA893440A CA 893440 A CA893440 A CA 893440A CA 893440 A CA893440 A CA 893440A CA 893440D A CA893440D A CA 893440DA CA 893440 A CA893440 A CA 893440A
Authority
CA
Canada
Prior art keywords
openings
roof support
underground mines
mines
underground
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
CA893440A
Inventor
C. White Claude
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 CA893440A publication Critical patent/CA893440A/en
Expired legal-status Critical Current

Links

CA893440A Roof support of underground mines and openings Expired CA893440A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA893440T

Publications (1)

Publication Number Publication Date
CA893440A true CA893440A (en) 1972-02-22

Family

ID=36399482

Family Applications (1)

Application Number Title Priority Date Filing Date
CA893440A Expired CA893440A (en) Roof support of underground mines and openings

Country Status (1)

Country Link
CA (1) CA893440A (en)

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