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Last edited by WorkBot
January 30, 2010 | History

Survey of Practices in Controlling Roof at Intersections and Junctions in Underground Coal Mines 1 edition

Survey of Practices in Controlling Roof at Intersections and Junctions ...
United States. Bureau of Mines ...

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Survey of Practices in Controlling Roof at Intersections and Junctions in Underground Coal Mines.

Published 1962 by s.n in S.l .
Written in English.

Edition Notes

1

Series
Information circular (United States. Bureau of Mines) -- 8113

ID Numbers

Open Library
OL21736550M

History Created December 9, 2009 · 2 revisions Download catalog record: RDF / JSON

January 30, 2010 Edited by WorkBot add more information to works
December 9, 2009 Created by WorkBot add works page