Agricultural machinery and attachments therefor, namely, rotary mowers, box scrapers, and three-point attachments; Automated hydro-thrust cleaning units for pipelines; Automatic swimming pool cleaners and parts therefor; Fluid power component kit for machine control comprising pumps and valves; Hydraulic pumps and motors for hydrostatic systems, comprised of pumps, motors, valves, switches, sensors and electronic controls, for hydraulic drives and force transmission in machines, machine tools, grinding and food processing machines and in off-road-vehicles; Lawn mower blades; Motors and pumps for refrigerators and freezers; Packaging machines and parts thereof; Parts for pneumatic blow guns, namely, inflator tips, inflator valves, valve adapters, nozzles, nipples, couplers, connectors and pivots; Pond and water garden aeration systems comprising water pumps, air compressors, air blowers and a finned wheel for pressurizing and aerating ponds and aquariums; Pressure transducers as parts of machines; Rubber tracks being parts of agricultural machines; Thermostatic control valves for machines; Washing machines for household purposes; Water pumps for spas, baths, whirlpools, swimming pools and water filtering units