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Improving the performance of longwall gob gas ventholes.

Bibliographic Details
Corporate Author:	United States. Bureau of Mines
Format:	Government Document Book
Language:	English
Published:	Washington, DC : Bureau of Mines, U.S. Dept. of the Interior, [1995]
Series:	Technology news ; no. 448.
Subjects:	Longwall mining > United States.
Online Access:	https://purl.fdlp.gov/GPO/LPS91733

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