Free Preview of 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
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