Permissible methane detectors

Author:	Ilsley, L. C.
Additional Authors:	Hooker, A. B.
Year:	1937
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:3359
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	3359
Subjects:	Firedamp
	Methane
	Detectors
Links:	https://hdl.handle.net/2027/mdp.39015078518456
	no.3351-3375 1937-1938