Articulated shoe sole with universal supportive wheel
Ball skate
Ball skate
Brake and remote control system for wheeled skate
Braking device for ski scooters
Device apt to permit skiing on snowless ground
Die cast roller skate sole plate
Double-foot plate pedaling skate
Frictionless noncontact engaging drive skate and skateboard
Grass ski
In-line roller skates with power assist roller
Jump skate
Jump skate
Mechanism for conversion of vertical force to a torque and...
Modified snow ski
Mono-ski
Occupant propelled skateboard
Plastic ski and method of making the same
Propelled bicycle with automatic transmission
Propelling roller skate