High volume covered hopper car
High volume covered hopper car with loading from below and autom
Hinge system for pivotally connecting a first member to a...
Hollow railroad car structure
Hopper car automatic discharge door mechanism with operating lev
Hopper car discharge system
Hopper car door lock mechanism
Hopper car door locking mechanism
Hopper car for liquid unit-train service
Hopper car gate
Hopper car gate with a curved door
Hopper car gate with a laterally opening door
Hopper car gate with opposed double doors
Hopper car outlet gate and seal
Hopper car outlet gate assembly
Hopper car outlet gate assembly with self cleaning gear and rack
Hopper car outlet gate valve
Hopper car outlet gate valve
Hopper car side construction and method
Hopper car with automatic discharge door mechanism