Power-operated blowers; Pneumatic blow guns for use in a manufacturing process to blow dust off parts, workstations or wherever necessary; Blowing machines for the compression, sucking and carrying of grain; Pond and water garden aeration systems comprising water pumps, air compressors, air blowers and a finned wheel for pressurizing and aerating ponds and aquariums; Mechanical reels for flexible hoses; Reels, mechanical, for flexible hoses; Hand-held vacuum cleaners; Electric hand-held drills