Yazar
e j gleim
2 cilt bulundu.
Cilt sonuçları
Permissible mine equipment approved during 1957-58
E. J. Gleim · U.S. Dept. of the Interior, Bureau of Mines
Sayfa sayısı yok · 1960
Mining machinery / Mine safety
Flame safety lamps
J. W. Paul, L. C. Ilsley, E. J. Gleim, United States. Bureau of Mines · Govt. print. off.
212 sayfa · 1924
Safety / Safety lamps