Bajpayee, T. S.
Firing delay characteristics of instantaneous and seismic detonators / by T.S. Bajpayee, Richard J. Mainiero, and J. Edmund Hay. - Pittsburgh, Pa. : U.S. Dept. of the Interior, Bureau of Mines, 1986. - 10 p. : ill. ; 28 cm. - Report of investigations / Bureau of Mines ; 9054 . - Report of investigations (United States. Bureau of Mines) ; 9054. .
86600119
Electric detonators--Safety measures.
Blasting--Safety measures.
Coal mines and mining--Safety measures.
TN23 TN279 / .U43 no. 9054
622 s 622/.334
I 28.28.23:9054
Firing delay characteristics of instantaneous and seismic detonators / by T.S. Bajpayee, Richard J. Mainiero, and J. Edmund Hay. - Pittsburgh, Pa. : U.S. Dept. of the Interior, Bureau of Mines, 1986. - 10 p. : ill. ; 28 cm. - Report of investigations / Bureau of Mines ; 9054 . - Report of investigations (United States. Bureau of Mines) ; 9054. .
86600119
Electric detonators--Safety measures.
Blasting--Safety measures.
Coal mines and mining--Safety measures.
TN23 TN279 / .U43 no. 9054
622 s 622/.334
I 28.28.23:9054