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Electronic parking meter and system

Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Device actuated by presence of land vehicle
Patent

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Method and apparatus for automatically dimming motor vehicle hea

Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Device actuated by presence of land vehicle
Patent

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Method and apparatus for compiling and evaluating local traffic

Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Device actuated by presence of land vehicle
Patent

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Microwave vehicle detector

Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Device actuated by presence of land vehicle
Patent

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Radar apparatus for accurately detecting a path of a target vehi

Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Device actuated by presence of land vehicle
Patent

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Traffic management system

Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Device actuated by presence of land vehicle
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