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Covered hopper train cars (22 unitsGate hopper car patents drawing discharge Hopper railcarRailcar diagram hoppers car covered pd american rail cars differential pressure freight open.
Railroad hopper cars (trains): capacity, dimensions, overviewPatent us20080066642 Patent us7367271Patents hopper railcar claims.
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Hopper rail covered railcar carsOn-rail detail #1 Pd hoppers – everest railcar servicesPatent us3707919.
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Covered Hopper Railcars for Lease – MRC : MRC
Patent US7367271 - Railway hopper car discharge gate - Google Patents
Railroad Hopper Cars (Trains): Capacity, Dimensions, Overview
Patent US20080066642 - Rail road hopper car fittings and method of
Patent US20100319570 - Rail road hopper car structure - Google Patents
Covered Hopper Train Cars (22 Units - Approximately 632 metric tons
Drawings from the Society’s archives and publications – The Santa Fe
On-Rail Detail #1 - 2Bay Covered Hopper | ModelRailroadForums.com
PD Hoppers – Everest Railcar Services