公式タイトルと情報はIP Exchange PlusとPremiumのユーザーのみが利用可能です。
特許 権利維持 A device that takes guesswork out for drivers who want to make to make a right turn and do not know if the person in the left-turn lane on their right are either going to go left or make a U-turn. By simply pressing a button, drivers who want to make a U-turn can press a button that causes a U-turn symbol to flash its lights and alert other drivers of what it is about to do. The best part is that the signal and button can be easily attached or unattached to the car.