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Actuated digital pretimed traffic controller

Communications: electrical – Traffic control indicator – Plural intersections under common central station control
Patent

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Controller interface device

Communications: electrical – Traffic control indicator – Plural intersections under common central station control
Reexamination Certificate

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Coordinator for traffic signal controller

Communications: electrical – Traffic control indicator – Plural intersections under common central station control
Patent

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Digital traffic control system

Communications: electrical – Traffic control indicator – Plural intersections under common central station control
Patent

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Intelligent traffic control and warning system and method

Communications: electrical – Traffic control indicator – Plural intersections under common central station control
Reexamination Certificate

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Intelligent traffic control and warning system and method

Communications: electrical – Traffic control indicator – Plural intersections under common central station control
Reexamination Certificate

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Intersection warning system

Communications: electrical – Traffic control indicator – Plural intersections under common central station control
Patent

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LED traffic signal light with automatic low-line voltage compens

Communications: electrical – Traffic control indicator – Plural intersections under common central station control
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LED traffic signal light with automatic low-line voltage compens

Communications: electrical – Traffic control indicator – Plural intersections under common central station control
Patent

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Method and apparatus for displaying the status of a system of tr

Communications: electrical – Traffic control indicator – Plural intersections under common central station control
Patent

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Methods and systems utilizing a programmable sign display...

Communications: electrical – Traffic control indicator – Plural intersections under common central station control
Reexamination Certificate

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Road traffic control system with alternating nonstop traffic flo

Communications: electrical – Traffic control indicator – Plural intersections under common central station control
Patent

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Road traffic monitoring system

Communications: electrical – Traffic control indicator – Plural intersections under common central station control
Reexamination Certificate

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Traffic control method for multiple intersections

Communications: electrical – Traffic control indicator – Plural intersections under common central station control
Reexamination Certificate

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Traffic control system and kit

Communications: electrical – Traffic control indicator – Plural intersections under common central station control
Patent

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Traffic control system and kit

Communications: electrical – Traffic control indicator – Plural intersections under common central station control
Reexamination Certificate

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Traffic light control and information transmission device

Communications: electrical – Traffic control indicator – Plural intersections under common central station control
Reexamination Certificate

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Vehicle traffic control system

Communications: electrical – Traffic control indicator – Plural intersections under common central station control
Utility Patent

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