Building materials, namely, a non-metal drainage and ventilation system comprising entangled strands of polypropylene and/or nylon used to prevent mold and mildew formation in residential, commercial and industrial buildings and structures

'and/or':17 'build':1,31 'commerci':28 'compris':12 'drainag':8 'entangl':13 'format':25 'industri':30 'materi':2 'metal':7 'mildew':24 'mold':22 'name':3 'non':6 'non-met':5 'nylon':18 'polypropylen':16 'prevent':21 'residenti':27 'strand':14 'structur':33 'system':11 'use':19 'ventil':10

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