What do we know about explosibility of coal dust in mines.

Bibliographic Details
Other Authors:	Greenwald, H. P. (Harold Putnam), 1893-
Format:	Government Document eBook
Language:	English
Published:	Washington, D.C. : [publisher not identified], 1929.
Series:	Mines Bur. Info. Circ. No. 6112
Subjects:	Coal mines and mining > Dust control. Explosions. Electronic books.
Online Access:	Connect to the full text of this electronic document

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