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| - Patent US6225918 - Automatic warning signal system for vehicles - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More ??Sign inAdvanced Patent SearchPatentsAn automatic warning signal system for a leading vehicle (e.g., an automobile, car, truck, tanker, van, bus, motor home, motorcycle, or other vehicles, etc., as well as trailers of all kinds in-tow, etc.) including a detector fo
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