Classification Information
Energy recovery ventilators; energy recovery ventilation components comprised of rotary air-to-air heat exchangers, with or without desiccant coatings, for transferring energy between tow air streams, and their associated wheel constructions, frames, seals, motors, drives and bearings, and Computer programs for addling in the design and selection of energy recovery ventilation components for rotary air-to-air heat exchangers
Electrical and Scientific Apparatus