Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Conveyor systems in underground iron-ore mines, Lake Superior District
Few underground metal mines either in ferrous or nonferrous branches use conveyors exclusively or even extensively for underground haulage; description of five significant installations studied by Bur of Mines during winter of 1947-48.
Conveyor systems in underground iron-ore mines, Lake Superior District
Few underground metal mines either in ferrous or nonferrous branches use conveyors exclusively or even extensively for underground haulage; description of five significant installations studied by Bur of Mines during winter of 1947-48.
Conveyor systems in underground iron-ore mines, Lake Superior District
U S Bur Mines -- Information Cir
Binyon, E.O. (Autor:in)
1949
33 pages
Supp plates
Report
Englisch
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