4. Railway switches and signals
  5. Cab signal or train control
  6. Train defect

Donald C. Wetzel

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Air line pressure tester

Measuring and testing – Fluid pressure gauge – Mounting and connection
Patent

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Airport runway monitoring system

Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent

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Digital dimming and flashing circuit for locomotive ditch lights

Electrical transmission or interconnection systems – Vehicle mounted systems – Automobile
Patent

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Digital dimming and flashing circuit for locomotive ditch lights

Electrical transmission or interconnection systems – Vehicle mounted systems
Patent

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Hot bearing simulator

Railway switches and signals – Cab signal or train control – Train defect
Patent

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Profile ID: LFUS-PAI-P-142957

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