Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mine explosions and fires in United States during fiscal year ended June 30 1933
Studies of 22 explosions in 10 states, and of 27 mine fires, 5 in metal mines; nearly one third of fires, causes of which are known, were due to electricity; 2 were caused by explosives and 8 were of spontaneous origin.
Mine explosions and fires in United States during fiscal year ended June 30 1933
Studies of 22 explosions in 10 states, and of 27 mine fires, 5 in metal mines; nearly one third of fires, causes of which are known, were due to electricity; 2 were caused by explosives and 8 were of spontaneous origin.
Mine explosions and fires in United States during fiscal year ended June 30 1933
U S Bur Mines -- Information Cir
Harrington, D. (Autor:in) / Fene, W.J. (Autor:in)
1934
19 pages
Report
Englisch
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Coal-mine explosions and fires in United States during fiscal year ended June 30, 1934
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Mine explosions and fires in United States during fiscal year which ended June 30, 1932
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