A device for marking a vehicle is provided having a base for attaching the device to the vehicle. A cantilevered support rod is pivotally connected with the base to permit pivotal movement and positioning of the rod relative to the base. A hollow marking sleeve having an outer transparent tube and an...http://www.google.es/patents/US5609121?utm_source=gb-gplus-sharePatente US5609121 - Device for marking a vehicle
