Dizzy's wanderings & wonderings: wondering about a r.r. icon. Patent us5259322 Hopper publications covered hopper car diagram with compartments
Patent US7735426 - Hopper cars with one or more discharge control
Hopper train Drawings from the society’s archives and publications – the santa fe Patents hopper car claims covered drawing
Hopper car diagram
3d train carHopper car covered pullman dizzy wonderings wanderings Patents hopperDiagram of covered hopper car by the gouvernement du canada.
Patent us7735426Grain and drain train .
