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Tests on the ignition of natural gas-air mixtures by permissible explosives in the experimental coal mine
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Published Year
1940-1949 (1)
Subject
Coal mines and mining--Explosives (1) *
Author
Greenwald, H. P. (1) *
Hartmann, Irving. (1)
Howarth, H. C. (1)
Nagy, John. (1)
