internal school communications system for controlling telephone, intercom, paging and program distribution and time keeping comprising telephone handsets, wall panels and a central control cabinet including amplifiers, AM/FM tuner/cassette player, power supply and operating software

'am/fm':28 'amplifi':27 'cabinet':25 'central':23 'communic':3 'compris':16 'control':6,24 'distribut':12 'handset':18 'includ':26 'intercom':8 'intern':1 'keep':15 'oper':34 'page':9 'panel':20 'player':30 'power':31 'program':11 'school':2 'softwar':35 'suppli':32 'system':4 'telephon':7,17 'time':14 'tuner/cassette':29 'wall':19

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