Electrical Sound-Amplifying Devices, Loud-Speaking Telephones, Marine Telephones, Aircraft-Telephones,[ Desk-Telephones,] 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':4,21 'antinois':39 'antinoise-telephon':38 'audion':19 'audion-frequency-amplifi':18 'box':25,37 'cabinet':22 'control':24 'control-box':23 'desk':16 'desk-telephon':15 'devic':5 'electr':1 'equip':49 'frequenc':20 'junction':36 'junction-box':35 'loud':7,28,32 'loud-speak':6,27,31 'marin':10,47 'marine-telephon':46 'master':43 'master-ring':42 'ringer':44 'sound':3 'sound-amplifi':2 'speak':8,29,33 'telephon':9,11,14,17,30,40,48 'transmitt':34

MAGNAVOX

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