37 Installation, servicing, maintenance and repair of machines in the nature of metal, plastic, paper and wood working machines; installation, servicing, maintenance and repair of hand-held machines in the nature of metal, plastic, paper and wood working machines; renting of machines, machine- tools and hand-held machines; in the nature of metal, plastic, paper and wood working machines; installation, servicing, maintenance and repair of machine tools, machines for metal and wood working, machines for plastic processing, machines for paper processing, namely table and pillar drilling machines, die-cutting and tapping machines, threading machines, threading machines with lead screw, drilling machines, lined up drilling machines, drilling machines for brushing, drilling lines, electric hand drills, drill chucks parts of machines, drilling heads parts of machines, drilling bits parts of machines, chucks parts of machines, double grinders, belt grinders, tube polishers, truing machines, saws machines, metal saws, band saws, circular saws, saw blades parts of machines, automatic saw benches parts of machines, planing machines, dressing machines and thickness planers, wood turning lathes, lathes machine tools, milling machines, table milling machines, dust exhausters, exhauster fans, deburring machines, hand-held tools, not hand-operated, cowlings parts of machines, housings parts of machines, hangers parts of machines, stands for machines, tables for machines, axles for machines, regulators parts of machines, drills parts of machines, punches for punching machines, punching machines, folding automates machines, springs parts of machines, bearings parts of machines, leather paring machines, machines and apparatus for polishing electric, cutting machines, dust exhausting installations for cleaning purposes, apparatus for cleaning, electric hammers, hammers parts of machines, tools parts of machines, holding devices for machine tools parts of machines, gas-operated cutting machines, cutting blow pipes, thermic lances machines, welding machines electric, gas-operated welding apparatus, gear boxes, except for land vehicles, joints parts of engines, governors for machines, engines and motors, compressed air machines, pressure regulators parts of machines, pressure valves parts of machines; installation, servicing, maintenance and repair of hand tools and implements, namely braces, breast drills, hand- drills, three jaw drill chucks, taps hand tools, hand drills, bits parts of hand tools, hollowing bits parts of hand tools, drills, carpenters' augers, augers hand tools, drill holders hand tools, ratchets hand tools, graving tools hand tools, center punches and chisels hand tools, bits hand tools, files tools, planes, hammers hand tools, pin punches, masons' hammers, punch pliers hand tools and pliers, rasps hand tools, riveters hand tools, frames for hand tools and hand saws, tube cutters hand tools, saws hand tools, saw holders, saw blades parts of hand tools, expanders tools and parts of the aforementioned goods