7 Machines and machine tools, namely, hydraulic pumps and motors for hydrostatic systems; machines for making road surface material; machines for road marking paints; road rollers; road sweepers; road sweeping machine, self-propelled; motors and engines except for land vehicles; machine coupling and transmission components except for land vehicles; agricultural implements other than hand-operated, namely, incorporators, seed drills, hay balers; electric welding machines; gas-operated welding machines; concrete mixing machines; bulldozers; mechanical discharging hoppers; truck lifts, namely, hydraulic lifts for lifting trucks; crank shafts for grinding machines; transmission shafts, other than for land vehicles being parts of machines; fans for motors and engines; drilling rigs, floating or non-floating; alternators; dynamos; mufflers for motors and engines; drilling heads being parts of machines; drilling bits being parts of machines; engines for air cushion vehicles; driving motors other than for land vehicles; shredding machines for industrial use; injectors for engines; ditchers in the nature of ploughs; steamrollers; machine wheels; compressor machines, namely, electric compressors, gas compressors; pneumatic and hydraulic digging machines; power-operated chain-type trenching machines for digging trenches; housings being parts of machines; cranes being lifting and hoisting apparatus; handling machines, namely, oil field equipment in the nature of drilling rig machines; mine working machines, namely, drilling machines, mine borers; earth moving machines, namely, backhoes, graders, loaders; grinding machines; oil refining machines, namely, oil centrifuges, oil separators; oil field equipment, namely, drilling rig mechanical handling machines; bitumen making machines; road making machines, namely, asphalt making machines; railroad constructing machines, namely, power-operated spray equipment for applying thermoplastic road marking paints, machine tools for breaking up road surface material, road rollers, and road sweepers; rail-laying machines; drainage machines, namely, electric pumps; self-propelled road sweeping machines; hydraulic controls for machines, motors and engines; feeders parts of machines; mixing machines, namely, fodder mixing machines, concrete mixers; electric and hydraulic pneumatic hammers; power hammers; guides for machines; machine pumps, namely, electric pumps as parts of machines, rotary pumps, screw pumps; axles for machines; sawing machines, namely, band saws, table saws; pneumatic transporters; pressing machines for industrial purposes, namely, mechanical presses, drill presses, hydraulic presses; transmissions for machines; robot machines, namely, industrial robots as mixing machines; heat exchangers being parts of machines; turbines other than for land vehicles; sifting installations, namely, separating machines; pneumatic tube conveyors; extractors for mines, namely, pile extractors; control mechanisms for machines, engines or motors, namely, hydraulic controls for machines, motors and engines; air cushion devices for moving loads, namely, power-operating lifting and moving equipment in the nature of telehandlers; handling apparatus for loading and unloading being loading and unloading machines; elevating apparatus, namely, elevating work platform, elevators; elevator chains being parts of machines; cylinders for motors and engines; cylinders for machines; fuel economizers being structural parts of motors and engines