(under subclass 157) Apparatus wherein the belt configuration includes a motion transmitting surface or surfaces for motion transmitting engagement with a pulley or drive wheel by motion resisting contact with the pulley or drive wheel.
SEE OR SEARCH CLASS
198, Conveyors: Power-Driven,
844.1+, for a conveyor belt structure.
301, Land Vehicles: Wheels and Axles,
43+, for a friction increasing projecting cleat.
474, Endless Belt Power Transmission Systems or Components,
167, for a friction drive belt in combination with a friction drive pulley or guide roll; and subclasses 237+ for a friction drive belt.
