Applicability of Radio to Emergency Mine Communications: Progress Report, September 1946 to November 1947

Author:	Felegy, E. W.
Year:	1948
Document Type:	N/A
SUDOC:	I 28.23:4294
Series:	United States Bureau of Mines Reports
Report Number:	R. I. 4294
Subjects:	Radio in mining.
	Mine communication systems.
	Mine safety -- Equipment and supplies.
Link:	http://digital.library.unt.edu/ark:/67531/metadc38494/