Totally Weird Vehicles From The 20th Century Constantini Motor Skates Constantini motor skates were invented in the early 20th century by M. Constantini. They looked and operated like normal roller skates except that each skate had a 1.5-horsepower engine, battery, fuel tank, and ignition. Previous Next Pages: 1 2 3 4 5 6 7 8 9 10 2017-03-21 spiel