Brattice window method for measuring leakage through mine stoppings

Author:	Vinson, Robert P.
Additional Authors:	Kissell, Fred N., Thimons, Edward D.,
Year:	1977
Document Type:	BMRA
Issuing Agency:	Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:8240
Series:	Report of investigations / Bureau of Mines ;
Report Number:	8240
Subject:	Mine ventilation
Link:	https://hdl.handle.net/2027/mdp.39015078483164