CA694877A - Roof supports for mines and the like - Google Patents

Roof supports for mines and the like

Info

Publication number
CA694877A
CA694877A CA694877A CA694877DA CA694877A CA 694877 A CA694877 A CA 694877A CA 694877 A CA694877 A CA 694877A CA 694877D A CA694877D A CA 694877DA CA 694877 A CA694877 A CA 694877A
Authority
CA
Canada
Prior art keywords
mines
roof supports
roof
supports
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
CA694877A
Inventor
D. Allen Archelaius
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.)
Gullick Ltd
Original Assignee
Gullick Ltd
Publication date
Application granted granted Critical
Publication of CA694877A publication Critical patent/CA694877A/en
Expired legal-status Critical Current

Links

CA694877A Roof supports for mines and the like Expired CA694877A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA694877T

Publications (1)

Publication Number Publication Date
CA694877A true CA694877A (en) 1964-09-22

Family

ID=36005134

Family Applications (1)

Application Number Title Priority Date Filing Date
CA694877A Expired CA694877A (en) Roof supports for mines and the like

Country Status (1)

Country Link
CA (1) CA694877A (en)

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