Preliminary evaluation of bit impact ignitions of methane using a drum-type cutting head /
by David A. Larson ... [et al.].
- [Avondale, Md.] : U.S. Dept. of the Interior, Bureau of Mines, 1982.
- ii, 23 p. : ill. ; 28 cm.
- Report of investigations ; 8755 .
- Report of investigations (United States. Bureau of Mines) ; 8755. .
Bibliography: p. 19-20.
82600321
Coal mines and mining--Safety measures.
Coal-mining machinery--Safety measures.
Methane--Combustion--Testing.
TN23 TN295 / .U43 no. 8755
622 s 622/.8
I 28.23:8755
Bibliography: p. 19-20.
82600321
Coal mines and mining--Safety measures.
Coal-mining machinery--Safety measures.
Methane--Combustion--Testing.
TN23 TN295 / .U43 no. 8755
622 s 622/.8
I 28.23:8755