Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Historical sketch of lake superior copper district
Historical sketch of lake superior copper district.
Historical sketch of lake superior copper district
Historical sketch of lake superior copper district.
Historical sketch of lake superior copper district
Min. Congress Jl.
Fisher, J. (Autor:in)
Mining Congress ; 1931
1931
4 pages
4 Figs.
Aufsatz (Konferenz)
Englisch
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Change houses in lake superior district
| Engineering Index Backfile | 1949
Stench warning tests, Lake Superior district mines
| Engineering Index Backfile | 1945
Accident experience iron-ore mines -- Lake superior district
| Engineering Index Backfile | 1945
Peculiarities of Lake Superior copper production
| Engineering Index Backfile | 1904
Support of ground, iron-ore mines, Lake Superior district
| Engineering Index Backfile | 1948