|
US4484852A
|
|
Hopper bottom unit
|
|
US4484528A
|
|
Railway hopper car
|
|
CA1149230A
|
|
Hopper bottom unit
|
|
CA1165182A
|
|
Rail car
|
|
CA1174114A
|
|
Hopper bottom unit
|
|
US4360295A
|
|
Combination gravity/pneumatic hopper bottom
|
|
US4352331A
|
|
Railway hopper car
|
|
US4353668A
|
|
Hopper bottom unit
|
|
CA1099763A
|
|
Loading and unloading valves
|
|
CA996412A
|
|
Bin type freight car
|
|
CA972623A
|
|
Discharge apparatus for hoppers and the like
|
|
US3876261A
|
|
Outlet gate for hoppers
|
|
US3823674A
|
|
Bin type freight car
|
|
US3718363A
|
|
Modular home rack for vehicles
|
|
US3687369A
|
|
Cleaning apparatus
|
|
US3552799A
|
|
Sparger type unloading apparatus for railroad cars
|
|
US3583768A
|
|
Aerated hopper discharge apparatus for railroad cars
|
|
US3408117A
|
|
Railroad car hopper discharge apparatus
|
|
US3338635A
|
|
Sparger type railroad car
|
|
US3316023A
|
|
Sparger type covered hopper car
|
