Coal-mine ventilation without doors to control main air currents

Author: Kingery, Donald S.
Additional Authors: Harris, E. J.
Year: 1958
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.27:7853
Series: Information circular / United States. Bureau of Mines ;
Report Number: 7853
Subject: Mine ventilation
Link: https://hdl.handle.net/2027/mdp.39015078454371

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