7 Loading and unloading machines and apparatus; loading and unloading machines and apparatus, namely, cranes, mobile cranes, self-travelling cranes, truck cranes, conveyor machines, crawler cranes, crawler-tracked loaders, jib cranes, power jacks, conveyors, and parts for all of the foregoing; hoisting and winding machine gears and structural and replacement parts therefor; rubber tracks that are designed for use on loading and unloading machines and structural and replacement parts for the rubber tracks; hydraulic lift tables; construction machines and apparatus, namely, foundation work machines, pile driving machines, drilling machines, and parts therefor; motors for loading and unloading machines and apparatus and parts therefor; motors for construction machines and apparatus, namely, foundation work machines, pile driving machines, drilling machines, and parts therefor; electric and non-electric hydraulic supply devices for use in crane operation, and parts therefor; machine elements for use in cranes, not for land vehicles; elevating work platforms and parts therefor; crane augers and parts therefor; lifting and hoisting machines, namely, elevators, elevating work platforms, hoists, belt conveyors, fork lifts and lifting work platforms and parts for all of the foregoing; aerial elevating work platforms and parts therefor; aerial elevating work platforms for attachment to cranes and hoists and parts therefor; rail and rail car mounted loading and unloading devices, namely, rail and rail car mounted cranes and hoists and parts for all of the foregoing