Having Four Wheels Driven Patents (Class 180/233)
- Comprising articulated frame and means for pivoting one portion of frame relative to other portion about vertical axis located centrally of vehicle (Class 180/235)
- In a path of travel other than that produced by turning the front wheels and the rear wheels substantially equally and oppositely (Class 180/236)
- Comprising swingable, plural-wheel-carrying axles on individual, vertical axes of pivot (Class 180/237)
- Including rotatable shaft extending longitudinally from wheels at one end of vehicle to wheels at other end for transmitting steering force thereto (Class 180/240)
- Including longitudinally extending, endless element for transmitting drive to wheels (Class 180/241)
Including longitudinally extending, endless element for transmitting drive to wheels (Class 180/251)