OLLIN

Heat exchangers; heat pumps; heat registers; heat sinks for use in heating, cooling and ventilating apparatus; hot water heaters; hot water tanks; humidifiers; solar heating panels; hot water tanks; electric radiators for heating buildings; steam radiators for heating buildings; water heaters for domestic, commercial or industrial use; electric hot plates; solar collectors; radiators using visible light, not for motors and engines; steam accumulators; steam generators; thermostatic valves; water closets; water conditioning units; water coolers; water pipes; plumbing fittings, namely valves, couplers, drains, pipes, washers; parts and accessories for all of the foregoing