Technical aids for the hearing impaired, namely, assisted listening systems comprising sound emitters, light emitters, vibration devices, light and sound detectors, and receivers and transmitters all to assist the hearing impaired in using doorbells, intercoms, security systems, clocks, and other products with sound emitting alarms

'aid':2 'alarm':45 'assist':8,28 'clock':38 'compris':11 'detector':21 'devic':17 'doorbel':34 'emit':44 'emitt':13,15 'hear':5,30 'impair':6,31 'intercom':35 'light':14,18 'listen':9 'name':7 'product':41 'receiv':23 'secur':36 'sound':12,20,43 'system':10,37 'technic':1 'transmitt':25 'use':33 'vibrat':16

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