CA704742A - Telescopic mine-roof supports - Google Patents

Telescopic mine-roof supports

Info

Publication number
CA704742A
CA704742A CA704742A CA704742DA CA704742A CA 704742 A CA704742 A CA 704742A CA 704742 A CA704742 A CA 704742A CA 704742D A CA704742D A CA 704742DA CA 704742 A CA704742 A CA 704742A
Authority
CA
Canada
Prior art keywords
roof supports
mine
telescopic
telescopic 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
CA704742A
Inventor
Heusner Wilhelm
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.)
Hermann Schwarz KG
Original Assignee
Hermann Schwarz KG
Publication date
Application granted granted Critical
Publication of CA704742A publication Critical patent/CA704742A/en
Expired legal-status Critical Current

Links

CA704742A Telescopic mine-roof supports Expired CA704742A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA704742T

Publications (1)

Publication Number Publication Date
CA704742A true CA704742A (en) 1965-03-02

Family

ID=36018416

Family Applications (1)

Application Number Title Priority Date Filing Date
CA704742A Expired CA704742A (en) Telescopic mine-roof supports

Country Status (1)

Country Link
CA (1) CA704742A (en)

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