Class [6]
Metal Products
Chains (other than driving chains for vehicles or for machines); sprocket chains; fasteners, lock nuts, latches, clamps and spring pins for fastening parts on shafts, all made of common metal and included in Class 6.
Class [7]
Machinery Products
Machines for the crushing, screening and processing of ore, rock and of minerals; hydraulic cylinders and shock absorbers, diesel engines, gears, gear reducers, clutch plates and parts for gear reducers and for clutches, none being for land vehicles; machines and apparatus included in Class 7, all for use in railroad maintenance; machines for making concrete roads; machines for use in the stabilization, grading and compaction of soil and for use in road building; machines for conveying and mixing concrete and incorporating storage and weighing facilities; cutting machines for agricultural and industrial use; hydraulic valves and presses, hydraulic pumps and motors; flow valves and controls therefor, all included in Class 7; fluid pressure regulators, hydraulic pump and tank units, conveyors and screens for use therewith, bucket elevators, hoppers and feeders, car unloaders, idlers and pulleys for belt conveyors for bulk material, ball and socket bearings, roller bearings, seals, universal joints and flexible couplings for rotating shafts, all being machines or parts of machines.
