Hydraulic circuits for motor cars; Ski carriers for vehicles; Wheel bearings for land vehicles; Steering units for land vehicles and parts thereof; Windshield wiper blades for vehicles; Structural parts for helicopters; Motorcycle trike conversion kits for converting a two-wheeled motorcycle into a three-wheeled motorcycle; Rear view mirrors; Vehicle power train mechanism comprised of clutch, transmission, drive shaft, and differential; Mud flap holders