4. Metal working
  5. Method of mechanical manufacture
  6. Converting

John A. Ritter

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Hopper car with automatic discharge door mechanism

Railway rolling stock – Special car bodies – Dumping
Patent

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Hopper car with automatic discharge door mechanism

Railway rolling stock – Special car bodies – Dumping
Patent

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Railroad car with double stack container restraint system

Railway rolling stock – Special car bodies – Freight
Patent

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Railroad gondola or hopper car, particularly a coal car

Railway rolling stock – Car framing and structure – Freight
Patent

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Railway box car conversion to highway trailer-carrying flatcar a

Metal working – Method of mechanical manufacture – Converting
Patent

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Profile ID: LFUS-PAI-P-225006

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