Components for air distribution systems within buildings, namely, registers attached to air conditioning or heating ducts, diffusers attached to air conditioning or heating ducts, and heat diffusion collars used to connect air conditioning or heating ducts

'air':3,12,20,32 'attach':10,18 'build':7 'collar':28 'compon':1 'condit':13,21,33 'connect':31 'diffus':17,27 'distribut':4 'duct':16,24,36 'heat':15,23,26,35 'name':8 'regist':9 'system':5 'use':29 'within':6

[ Components for air distribution systems within buildings, namely, metal installation flanges ]

'air':3 'build':7 'compon':1 'distribut':4 'flang':11 'instal':10 'metal':9 'name':8 'system':5 'within':6

Components for air distribution systems within buildings, namely, non-metal installation flanges

'air':3 'build':7 'compon':1 'distribut':4 'flang':13 'instal':12 'metal':11 'name':8 'non':10 'non-met':9 'system':5 'within':6

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