What do we know about the explosibility of coal dust in mines?

Author: Greenwald, H. P.
Year: 1929
Document Type: USBI
Issuing Agency: U.S. Dept. of Commerce, Bureau of Mines,
SUDOC: C 22.11:6112
Series: Information circular / United States Department of Commerce, Bureau of Mines ;
Report Number: 6112
Subjects: Mine explosions
Coal mines and mining
Link: https://hdl.handle.net/2027/mdp.39015077570185

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