4. Communications: electrical
  5. Condition responsive indicating system
  6. Specific condition

Peter M. Bartek

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Portable automatic train trip cock tripper

Railway switches and signals – Cab signal or train control – Track trips
Reexamination Certificate

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Safety system for railroad personnel

Railway switches and signals – Train-position indication – Train annunciators or indicators
Reexamination Certificate

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Voltage testing apparatus for electrical railways

Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2706841

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