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CA447567A - Mine roof testing - Google Patents

Mine roof testing

Info

Publication number
CA447567A
CA447567A CA447567A CA447567DA CA447567A CA 447567 A CA447567 A CA 447567A CA 447567 A CA447567 A CA 447567A CA 447567D A CA447567D A CA 447567DA CA 447567 A CA447567 A CA 447567A
Authority
CA
Canada
Prior art keywords
mine roof
testing
roof testing
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
CA447567A
Other languages
French (fr)
Inventor
T. Gallagher Robert
B. Grennecke Cornelius
D. Currie Robert
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.)
General Reinsurance Corp
Original Assignee
General Reinsurance Corp
Publication date
Application granted granted Critical
Publication of CA447567A publication Critical patent/CA447567A/en
Expired legal-status Critical Current

Links

CA447567A Mine roof testing Expired CA447567A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA447567T

Publications (1)

Publication Number Publication Date
CA447567A true CA447567A (en) 1948-03-30

Family

ID=35565248

Family Applications (1)

Application Number Title Priority Date Filing Date
CA447567A Expired CA447567A (en) Mine roof testing

Country Status (1)

Country Link
CA (1) CA447567A (en)

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