Yazar
Richard H Oitto
6 cilt bulundu.
Cilt sonuçları
Study on underground auger mining hazards
Richard H Oitto · Mining Enforcement and Safety Administration
11 sayfa · 1975
Mining machinery / Mine safety
Analysis of injuries involving jackleg rock drills underground, 1973-1974
Richard H Oitto · U.S. Dept. of the Interior, Mining Enforcement and Safety Administration
16 sayfa · 1975
Rock-drills / Mine accidents
Analysis of fatal accidents involving front-end loaders at metal and nonmetal mines, 1972-74
Richard H Oitto · U.S. Dept. of the Interior, Mining Enforcement and Safety Administration
Sayfa sayısı yok · 1975
Loaders (Machines) / Mine accidents
Moving longwall shield supports at the York Canyon mine, Raton, N. Mex
Richard H. Oitto · Dept. of the Interior, Bureau of Mines
19 sayfa · 1977
Mine timbering / Coal mines and mining / Mining engineering