4. Data processing: vehicles, navigation, and relative location
  5. Vehicle control, guidance, operation, or indication
  6. Railway vehicle

Greggory C. Phelps

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Gate monitoring system

Railway switches and signals – Electric automatic highway signals – mine doors – and gates
Reexamination Certificate

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Railroad snow removal system

Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Railway vehicle
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2223803

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