Inspections of electronic noise masking systems; design for others in the field of electronic noise masking systems

'design':7 'electron':3,14 'field':12 'inspect':1 'mask':5,16 'nois':4,15 'other':9 'system':6,17

Installation and maintenance of an electronic noise masking system

'electron':6 'instal':1 'mainten':3 'mask':8 'nois':7 'system':9

Sound masking, paging and music network comprising any of the following components; loudspeaker, programmable timer, electric cables, transformer, remote control, or any combination of such components, all parts therefore and accessories thereof, namely, remote controls, electric switches

'accessori':31 'cabl':17 'combin':23 'compon':12,26 'compris':7 'control':20,35 'electr':16,36 'follow':11 'loudspeak':13 'mask':2 'music':5 'name':33 'network':6 'page':3 'part':28 'programm':14 'remot':19,34 'sound':1 'switch':37 'therefor':29 'thereof':32 'timer':15 'transform':18

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