0,25-GD-III-6 1959
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Subscriber loudspeaker "025GD-III-6" presumably since 1959 produced the Moscow factory of hearing aids. ,8caa42f5a9df53968033bf99609e44f6 There is no information on hypertension. ,8caa42f5a9df53968033bf99609e44f6 ,null,ru,null,null,null,null
Information from collection of Valery Khartchenko