[ Telephones; ] cabinets for loudspeaker; [ acoustic diaphragms in the nature of electroacoustic transducers; televisions; audio- and video- receivers; ] megaphones; [ acoustic couplers; sound transmitting apparatus; ] loudspeakers [ ; transistor radios ]

'acoust':5,19 'apparatus':23 'audio':14 'cabinet':2 'coupler':20 'diaphragm':6 'electroacoust':11 'loudspeak':4,24 'megaphon':18 'natur':9 'radio':26 'receiv':17 'sound':21 'telephon':1 'televis':13 'transduc':12 'transistor':25 'transmit':22 'video':16

SONAVOX

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