This patent is called gas engine locomotive.
Karl benz, a German engineer, applied to the Royal German Patent Office on 1886129 October and was approved on12 October/65438 in the same year. The patent number is 37435, which belongs to the category of air and gaseous power machinery, and the patent name is gaseous engine locomotive. It is recognized as the world's first three-wheeled car "Mercedes-Benz 1". 19861October 29th applied to the German Royal Patent Office, and was approved on October 2nd of the same year. The patent number is 37435, which belongs to the category of air and gaseous power machinery, and the patent name is gaseous engine locomotive. It is recognized as the world's first three-wheeled car "Mercedes-Benz 1".