4. Railway switches and signals
  5. Train dispatching
  6. Spacing

Douglas G. Knight

Inventor

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Automatic train serialization utilizing comparison between a mea

Railway switches and signals – Train dispatching – Spacing
Patent

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Automatic train serialization with car orientation

Communications: electrical – Vehicle detectors
Patent

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Automatic train serialization with car orientation

Communications: electrical – Vehicle detectors
Patent

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Film scanner

Television – Special applications – Film – disc or card scanning
Reexamination Certificate

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Film scanner

Television – Special applications – Film – disc or card scanning
Reexamination Certificate

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Profile ID: LFUS-PAI-P-852167

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