Hercules Cement Corp., Philadelphia, Pa., has patented and put into service some all-steel, self-unloading rail carriers for bulk cement which offer interesting possibilities to railways in their competition with bulk-carrier barges and boats on Great Lakes, seacoast and on inland waterways.
Self-unloading bulk cement railway cars
Rock Products
Rock Products ; 33 , n 1
1930
2 pages
3 Figs.
Aufsatz (Zeitschrift)
Englisch
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