Road Stud Flashing Safety Road Light Motorway Road Reflector
US6911917B2 – Hazard warning device, particularly for highway
A hazard warning device for highway use includes a set of self-contained, micro-processor controlled studs, each stud incorporating a rechargeable battery and/or capacitor, the studs being capable, when deployed and activated, of emitting a hazard warning light, and, when not deployed, housed in a charger case stored and transported in a road vehicle and rechargeable from the vehicle’s
China SWAREFLEX road studs high...
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