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Patent US3664270 - Covered hopper car with hatch cover means - Google

Patent US3664270 - Covered hopper car with hatch cover means - Google

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Patent us4362111

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Dizzy's Wanderings & Wonderings: Wondering About a R.R. Icon.
Patent US3677196 - Covered hopper car - Google Patents

Patent US3677196 - Covered hopper car - Google Patents

Patent US3664270 - Covered hopper car with hatch cover means - Google

Patent US3664270 - Covered hopper car with hatch cover means - Google

Patent US5433559 - Pressurized hopper car - Google Patents

Patent US5433559 - Pressurized hopper car - Google Patents

Patent US4362111 - Covered hopper car - Google Patents

Patent US4362111 - Covered hopper car - Google Patents

How to Build Model...

How to Build Model...

Virginia Beach Fire Academy: Hopper Car | HAZMAT

Virginia Beach Fire Academy: Hopper Car | HAZMAT

Patent US6412421 - Gate assembly for a railroad hopper car - Google Patents

Patent US6412421 - Gate assembly for a railroad hopper car - Google Patents

Hopper Cars 3250 - [PDF Document]

Hopper Cars 3250 - [PDF Document]

How to Build Model...

How to Build Model...

Patent US7735426 - Hopper cars with one or more discharge control

Patent US7735426 - Hopper cars with one or more discharge control