IC 011. US 013 021 023 031 034. G & S: Range hoods, ventilating exhaust fans, exhaust hoods for kitchens, electric heater/fan light combination units for commercial and residential use; indoor air purifier systems, namely, whole house air exchangers, heat recovery ventilators, energy recovery ventilators, ventilation fan wall controls and filters, and parts and fittings for the foregoing all sold as a unit. FIRST USE: 20070201. FIRST USE IN COMMERCE: 20070201
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