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Subjects
Boring, Coalbed methane drainage, Mine ventilationPlaces
PennsylvaniaEdition | Availability |
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1
Comparison of rotary and in-hole motor techniques for drilling horizontal boreholes in coal
1985, U.S. Dept. of the Interior, Bureau of Mines
in English
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Book Details
Edition Notes
Bibliography: p. 19.
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The Physical Object
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Feedback?December 4, 2010 | Edited by Open Library Bot | Added subjects from MARC records. |
December 10, 2009 | Created by WorkBot | add works page |