Air-conditioning, air cooling and ventilation apparatus and instruments; Dripper irrigation systems, comprised of valves, filters and regulators; Electric ranges; Fireplace louvers, blowers, and dampers, and ash pans for fireplaces; Flexible pipes being parts of shower plumbing installations; Heating installations; Lamp finials; Misting systems for outdoor cooling; Plumbing fittings, namely, bibbs, cocks, traps, and valves; Plumbing fittings, namely, aerators for faucets; Refrigerating machin...