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March 17, 2010 | History

Sinking Methods and Costs For A Small Vertical Shaft with Steel Supports: Keystone Mine, Crested Butte, Colo. 1 edition

Sinking Methods and Costs For A Small Vertical Shaft with Steel Suppor ...
United States. Bureau of Mines ...

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Sinking Methods and Costs For A Small Vertical Shaft with Steel Supports
Keystone Mine, Crested Butte, Colo.

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

Edition Notes

1

Series
Information circular (United States. Bureau of Mines) -- 8086

ID Numbers

Open Library
OL21736619M

History Created December 9, 2009 · 3 revisions Download catalog record: RDF / JSON

March 17, 2010 Edited by WorkBot update details
January 30, 2010 Edited by WorkBot add more information to works
December 9, 2009 Created by WorkBot add works page