Aquarium pumps; Automatic swimming pool cleaners and parts therefor; Beer pumps; Egg brooders; Engines and motors for model vehicles, aircraft and boats; Milking machines; Parts for compressed-air tools, namely, brakes, filters, hoses, pipes, couplings valves, switches, compressors, clamping tools and injectors; Power-operated blowers; Transmission gears for machines; Water aeration systems comprising water pumps, air compressors and air blowers