4. Metal working
  5. Method of mechanical manufacture
  6. Structural member making

Todd L. Lydic

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Center sill construction for a hopper rail car

Railway rolling stock – Car framing and structure – Underframes
Patent

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Light weight gondola car

Railway rolling stock – Car framing and structure – Freight
Patent

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Lightweight hopper car

Railway rolling stock – Special car bodies – Dumping
Patent

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Method of cold forming center sill for a railcar

Metal working – Method of mechanical manufacture – Structural member making
Patent

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One piece center sill for a railroad car

Railway rolling stock – Car framing and structure – Underframes
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1205443

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