Non-metal building materials for ventilation in domestic, commercial and industrial use, namely, intake and exhaust filters; Non-metal vent cover for HVAC ducts; non-metal screens for HVAC ducts; non-metal increasers for HVAC ducts; non-metal reducers for HVAC ducts; non-metal couplers for HVAC ducts; non-metal adapters for HVAC ducts; non-metal connectors for HVAC ducts

'adapt':58 'build':4 'commerci':10 'connector':65 'coupler':51 'cover':23 'domest':9 'duct':26,33,40,47,54,61,68 'exhaust':17 'filter':18 'hvac':25,32,39,46,53,60,67 'increas':37 'industri':12 'intak':15 'materi':5 'metal':3,21,29,36,43,50,57,64 'name':14 'non':2,20,28,35,42,49,56,63 'non-met':1,19,27,34,41,48,55,62 'reduc':44 'screen':30 'use':13 'vent':22 'ventil':7

Heating, ventilation, and air conditioning equipment and accessory parts for domestic, commercial, and industrial use, namely, intake and exhaust air filters; ventilation fan accessories, namely, adapters

'accessori':8,24 'adapt':26 'air':4,20 'commerci':12 'condit':5 'domest':11 'equip':6 'exhaust':19 'fan':23 'filter':21 'heat':1 'industri':14 'intak':17 'name':16,25 'part':9 'use':15 'ventil':2,22

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