Hildenbrand, Wilhelm The Underground Haulage of Coal by Wire Ropes: Including the System of Wire Rope Tramways As a Means of Transportation for Mining Products : A Practical Essay Written for John A. Roebling's Sons Co Hildenbrand, Wilhelm The Underground Haulage of Coal by Wire Ropes: Including the System of Wire Rope Tramways As a Means of Transportation for Mining Products : A Practical Essay Written for John A. Roebling's Sons Co Sök bara efter: Hildenbrand, Wilhelm
