7 Machines and machine tools, namely, pneumatic and hydraulic machines in the nature of drills, augers, drill hammers, drilling bits and drill tubes being part of machines, drilling machines, drill derricks, pile drivers, demolition wrecking machines, air powered tools in the nature of rivet hammers, nut runners and wrenches, screw and nut drivers, axes, grinding machines for refacing the edges of tools and for the treatment of metal and ceramics, impact tools in the nature of impact wrenches, hot-air pistols in the nature of drying machines , spray guns, blow guns for all cleaning applications, pulverizing guns, sand spraying devices in the nature of sand-blasting apparatus, polishers and sanders, sandblasting apparatus, namely, sandblasting containers and sand collecting apparatus; internal combustion engines for power generation other than for land vehicles; driven and electrically driven machines in the nature of drills, augers, drill hammers, drilling bits and drill tubes being part of machines, drilling machines, drill derricks, pile drivers, demolition wrecking machines, air powered tools in the nature of rivet hammers, nut runners and wrenches, screw and nut drivers, axes, grinding machines for refacing the edges of tools and for the treatment of metal and ceramics, impact tools in the nature of impact wrenches, hot-air pistols air drying machines , spray guns, blow guns for all cleaning applications, pulverizing guns, sand spraying devices in the nature of sand-blasting apparatus, polishers and sanders, sandblasting apparatus, namely, sandblasting containers and sand collecting apparatus; machine tools, namely, raise boring machines, drills, augers, drill hammers, drilling bits and drill tubes being part of machines, drilling machines, drill derricks, pile drivers, demolition wrecking machines, air powered tools in the nature of rivet hammers, nut runners and wrenches, screw and nut drivers, crushers and pulverizers, breakers, hammers, flatters, hammers and axes for machines, grinding machines for refacing the edges of tools and for the treatment of metal and ceramics, impact tools in the nature of impact wrenches, hot-air pistols in the nature of drying machines for different types of services, spray guns, blow guns for all cleaning applications, pulverizing guns, sand spraying devices in the nature of sand-blasting apparatus, polishers and sanders, sandblasting apparatus, namely, sandblasting containers and sand collecting apparatus; paint circulating apparatus; machines tools in the nature of mounting and assembly tools, namely, pumps, hydraulic nuts and hydraulic withdraw tools, nut runners, impact wrenches; compressors being machines, air compressors, regulators for compressors, after- coolers and intercoolers for compressors; low pressure and high pressure valves for compressors not for vehicles; starters, namely, starters for motors and engines; drives and gearings for compressors; excavators, rammers being machines, elevators, lifts; motors other than for land vehicles, pneumatically driven motors, hydraulically driven motors, internal combustion engines for power generation other than for land vehicles and electrically driven motors; pressure nets and pressure generators in the nature of compressors as parts of machines for generating air curtains in waters, air bubble pumps; drifting equipment for rock drilling, air hoist blocks and trolleys for hoist blocks, compressed air dryers and equipment, filters being parts of machines and motors, generators, separators, heat recovery machines, mounting systems, electric saws, engines, chisels for machines, rasps, spades, all parts of machine tools; exhausters; wood and metal drifts, diggers being machines; windings for electrical motors; winches; lubricators being parts of machines; impellers; feeders, loaders; jacks, namely, hydraulic jacks, electric jacks and pneumatic jacks; windlasses; cylinders for machines; silencers, namely, silencers for motors and engines; electrical vacuum cleaners; valves being machine parts, namely, main slide valves, membrane valves, starter slide valves; valves being machines parts, namely, pneumatic, hydraulic, starter and ball valves; pistons; crank shafts; pressure oscillation dampers; injectors in the nature of injectors for engines, fuel injectors, ejectors being parts of machines, diverging sections in the nature of vacuum pumps and water pumps; nozzles being machine parts, particularly expansion, venturi and convergent-divergent nozzles which are parts of power-operated sprayers, pneumatic blow guns; machine parts, namely, adjustable drilling arms, positioning arms and drilling stanchions; feeding devices for drill hammers; pipe cutters, namely, power-operated hydraulic pipe cutters; milling cutters being machine tools; nibblers being power tools; conveyors; governors being machines; paint cups for paint spraying guns; steam engines and generators; compressed air maintenance units; oil sprayers, condensate separators; crossheads being components for machines; self- regulating engine fuel pumps; air compressors; electric pumps and vacuum pumps; air compressors to drive medical, surgical and dental tools; compressed air filters for pneumatic controls being part of machines; centrifugal blowers; pneumatic air blowers being parts of machines; power operated blowers being parts of machines; oil separators; nitrogen-operated electric power generators for emergency use; vacuum pumps; oil water separator for pneumatic controls being part of machines; electric motors for machines; drilling machines; machine tools for riveting of metal; sanding machines for woodworking; power-operated lubricant dispensers for machines; turbines, other than for land vehicles; expansion turbine, other than for land vehicles; portable electric compressors; oil filters; centralizers in the nature of centering drill bits being parts of machines; pneumatic nut runners