CA827884A - Roof support of underground mines and openings - Google Patents

Roof support of underground mines and openings

Info

Publication number
CA827884A
CA827884A CA827884A CA827884DA CA827884A CA 827884 A CA827884 A CA 827884A CA 827884 A CA827884 A CA 827884A CA 827884D A CA827884D A CA 827884DA CA 827884 A CA827884 A CA 827884A
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
CA827884A
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 CA827884A publication Critical patent/CA827884A/en
Expired legal-status Critical Current

Links

CA827884A Roof support of underground mines and openings Expired CA827884A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA827884T

Publications (1)

Publication Number Publication Date
CA827884A true CA827884A (en) 1969-11-25

Family

ID=36305332

Family Applications (1)

Application Number Title Priority Date Filing Date
CA827884A Expired CA827884A (en) Roof support of underground mines and openings

Country Status (1)

Country Link
CA (1) CA827884A (en)

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