Patents hopper Patents hopper car claims covered drawing 12in 31cm 17cm 7in nwhs hopper
NWHS NW-B17624-NW Mech Dwg
Trinity hopper covered bay rrmods Hopper train bulk freight loads Nwhs ds02066-digital scan
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Patent us773542617in 28cm 42cm 11in nwhs hopper Hopper hoppersPatent us5259322.
Wsox trinity 2-bay covered hopperTriple hopper Covered hoppersNwhs nw-b17624-nw mech dwg.
NWHS DS02066-Digital Scan
NWHS NW-B17624-NW Mech Dwg
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Covered Hoppers - Freightcar America
WSOX Trinity 2-Bay Covered Hopper - RRMods
Patent US5259322 - Five unit articulated covered hopper car - Google
Triple Hopper - Freightcar America
