And you need one if you're gonna operate any self-propelled vehicle on the street.

It was the third self-propelled vehicle to operate in Hawaii.

With the meaning of "self-propelled vehicle for carrying goods" it has been in usage since 1911.

It had become a self-propelled vehicle in the fullest sense of the term.

During the latter part of the 18th century, there were numerous attempts to produce self-propelled steerable vehicles.

There are basic reasons to isolate locomotive train power, as compared to self-propelled vehicles.

"It was - or is - the world's first self-propelled vehicle," Professor Galluzzi said.

He is believed to have built the first self-propelled mechanical vehicle.

Steam-powered self-propelled vehicles large enough to transport people and cargo were first devised in the late 18th century.

The term originally includes all self-propelled military used vehicles including traditional tanks and aircraft.