AU275813B2 - Improvements relating to roof supports primarily for use in mine workings - Google Patents

Improvements relating to roof supports primarily for use in mine workings

Info

Publication number
AU275813B2
AU275813B2 AU26729/63A AU2672963A AU275813B2 AU 275813 B2 AU275813 B2 AU 275813B2 AU 26729/63 A AU26729/63 A AU 26729/63A AU 2672963 A AU2672963 A AU 2672963A AU 275813 B2 AU275813 B2 AU 275813B2
Authority
AU
Australia
Prior art keywords
improvements relating
roof supports
mine workings
supports primarily
primarily
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
AU26729/63A
Other versions
AU2672963A (en
Inventor
Maria Groetschel Karl
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
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of AU2672963A publication Critical patent/AU2672963A/en
Publication of AU275813B2 publication Critical patent/AU275813B2/en
Expired legal-status Critical Current

Links

AU26729/63A 1963-01-24 Improvements relating to roof supports primarily for use in mine workings Expired AU275813B2 (en)

Publications (2)

Publication Number Publication Date
AU2672963A AU2672963A (en) 1964-07-30
AU275813B2 true AU275813B2 (en) 1964-07-30

Family

ID=

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