LandOfFree - Canadian Patents - Listing for B - Operations, Transporting,61,L

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Facility for monitoring the operation of a signal lamp

B - Operations – Transporting – 61 – L

Patent

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Fail-safe decoder for digital track circuits

B - Operations – Transporting – 61 – L

Patent

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Fail-safe logic circuitry for vehicle transportation control

B - Operations – Transporting – 61 – L

Patent

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Fail-safe railroad-highway grade crossing protection system

B - Operations – Transporting – 61 – L

Patent

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Fail-safe solid state highway crossing protection apparatus

B - Operations – Transporting – 61 – L

Patent

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Fail-safe speed control system for railroad trains

B - Operations – Transporting – 61 – L

Patent

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Failsafe cab signal process for high voltage pulsating...

B - Operations – Transporting – 61 – L

Patent

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Failsafe train vehicle control signal threshold detector...

B - Operations – Transporting – 61 – L

Patent

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Feeding and controlling device for railroad signal light

B - Operations – Transporting – 61 – L

Patent

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Float operated circuit closer

B - Operations – Transporting – 61 – L

Patent

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Flux nulled wheel detector

B - Operations – Transporting – 61 – L

Patent

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Frequency modulated railroad track circuit

B - Operations – Transporting – 61 – L

Patent

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