ELECTRICAL SOUND-AMPLIFYING DEVICES, [LOUD-SPEAKING TELEPHONES, MARINE TELEPHONES,] AIRCRAFT-TELEPHONES, [DESK-TELE PHONES,] AUDION-FREQUENCY-AMPLIFYING CABINETS, [CONTROL-BOXES FOR LOUD-SPEAKING TELEPHONES, LOUD SPEAKING TRANSMITTERS, JUNCTION-BOXES,] ANTINOISE-TELEPHONES [, AND MASTER-RINGERS FOR MARINE TELEPHONE EQUIPMENT]

'aircraft':13 'aircraft-telephon':12 'amplifi':4,22 'antinois':39 'antinoise-telephon':38 'audion':20 'audion-frequency-amplifi':19 'box':26,37 'cabinet':23 'control':25 'control-box':24 'desk':16 'desk-tel':15 'devic':5 'electr':1 'equip':48 'frequenc':21 'junction':36 'junction-box':35 'loud':7,29,32 'loud-speak':6,28 'marin':10,46 'master':43 'master-ring':42 'phone':18 'ringer':44 'sound':3 'sound-amplifi':2 'speak':8,30,33 'tele':17 'telephon':9,11,14,31,40,47 'transmitt':34

MAGNAVOX

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