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US4914435A
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Pedestrian traffic signal
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Microprocessor controlled loop detector system
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Solid state regulated power supply system for cold cathode luminescent tube
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Solid state regulated power supply system for cold cathode luminous tube
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Visor assembly for pedestrian traffic signal
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Visor assembly for pedestrian traffic signal
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Rotatable lamp socket for incandescent pedestrian traffic signal, or the like
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Visor assembly for pedestrian traffic signal
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Mounting bracket assembly for pedestrian traffic signal
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Mounting bracket assembly for traffic signals and pedestrian signal units
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Adapter unit for pedestrian traffic control signal
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Traffic signal loop monitoring system
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Digital test instrument
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Vehicle detection
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Vehicle detection system
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US3873969A
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Adapter unit for pedestrian traffic control signal
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