7 valves, parts of machines; spring discs, generators and pumps not for vehicles; namely, piston pumps, differential piston pumps, centrifugal pumps, rotary pumps, high and very high pressure pumps, hydraulic pumps, feed pumps, pumps for high pressure pressing, cementing pumps, conveying pumps, pumps for conveying chemical and/or corrosive agents, pressure amplifying pumps, high performance pumps, chromatography pumps, mining pumps, polyurethane pumps, multi-component pumps; compressors for machines; high pressure pneumatic units, mobile high pressure pneumatic units, inter alia, for use in building sites or during assembly work; stationary high pressure pneumatic units, inter alia for driving and controlling machine tools, presses, locks, chutes, cranes and contactors; compressors (machines); namely, piston compressors, centrifugal compressors, diaphragm compressors, very high pressure compressors and gas compressors; very high pressure compressors for oil, water, emulsions and for other liquids; pressure amplifiers for pumps and hydraulic accumulators for compressors, inter alia high pressure compressors for shock absorbers, for high pressure tyres, for tools, for machine tools, and for presses and for test rigs operating with air and gases at maximum pressure; pressure multipliers for liquids and gases; air pressure intensifiers for pumps and accumulators for compressors, inter alia high pressure compressors, for shock absorbers, for high pressure tyres, for tools, for machine tools and for presses and for test rigs operating with air and gas at maximum pressure, diaphragms as parts of machines and mechanical appliances; connecting blocks for hydraulic appliances and instruments for pumps and motors and for hydraulic units; cocks or mountings (parts of machines) used in combination with gaseous, liquid and pulverulent materials, inter alia hydraulic fluids, compressed air, mixtures of solid substances and liquids or gases, inter alia for the chemical and nuclear industries and the fabrication or casting or moulding industries for the heavy current industry and for the construction of test rigs; discharge screws and spherical cocks as parts of machines or air compressors; agitators as parts of machines and mechanical appliances; mechanically actuated tools; namely, those for the machining of pipes and tools for grinding and adjusting pipes; automatic control and regulating equipment; namely, high pressure multipliers, control and regulation equipment, switching equipment, and equipment for protection against overloads; electric generators; electric pressure amplifiers; electric pressure transformers; filters; in particular, filling filters, oil filters, ventilation filters, high pressure filters and suction filters, all as parts of machines; diaphragms as parts of machines; power operated pipe-working tools; namely, tube reamers; torque wrenches and torque spanners; land vehicles for transporting pumps; machine parts; namely, agitating units; drilling machines; in particular, drilling machines for rock, coal and other minerals, rotary drilling machines and trailer-mounted drilling machines; cargo trailers for transporting drills, drills, drill pipe and drill pipe strings; in particular, drill pipe strings for large holes, drill pipe strings for flushing, pipe strings for rotary drilling and pipe for rotary drilling strings; and adapters, connectors, couplings therefor; fishing mandrels and fishing bells for drill pipe strings and drill pipe; flushing heads for drill pipe strings and drill pipe; crown bits, crown bits for large holes; drill bits, drill bits for large holes and roller bits; drill chucks and drill heads; pipe couplings, pipe connectors and adapters for drill pipe strings and drill pipe; filters, ventilating fans and ducts, and filtering nozzles for industrial use for filtering dust, powders, chips and other fine-grained substances from liquids and gases; cyclones for the separation of dust and parts of such cyclones; filtration apparatus and equipment for filtering gaseous and liquid media for industrial purposes as parts of machines; filter hoses, filter bags, filter pockets, filter sacks; namely, those made of textile materials, plastics, metal wire cloth, porous ceramics and felt as parts of machines; motor-driven vibrators for cleaning, separating and filtering apparatus and equipment; mechanically and manually actuated machinery and parts thereof for gripping, lifting, transporting, handling, installing, rotating, turning, lowering, stacking and loading; lifting hangers, lifting harnesses, gripping harnesses, crane cross beams, crane hook cross beams, skeleton-type cross beams, crane forks, cross-beam harnesses; traveling gear and trolleys for machinery for gripping, lifting, transporting, handling, installing, rotating, turning, lowering, stacking and loading; manually and mechanically operated machinery and parts thereof for actuating, remote actuating, opening, closing, securing, locking, stopping, bolting and unbolting; gripping clamps, gripping claws, clamping jaws, squeezing tools, tilting machinery, rotating machinery, lever linkages, levers, gripping levers, gripping arms, hinges, devices protecting against opening and slipping, stops, chains, hooks, eyelets, straps, rings, shackles, catches, locks, springs, bolts, closures, unbolting devices, suspension clips, suspension straps, balancing weights, rollers, traverses, supports, forks, clamps; hydraulically operated machines for use in lifting and lowering goods and parts therefor; parts of machines; namely, trolleys and components therefor