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Individual
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Individual
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Priority to ES0322168ApriorityCriticalpatent/ES322168A1/en
Publication of ES322168A1publicationCriticalpatent/ES322168A1/en
Telephone amplifying apparatus, characterized in that it comprises a box provided with mounting means for its placement next to the telephone box and inside which is an inductance arranged so that in this assembly it is located within the flow of dispersion of the inductances of the telephone apparatus, and an audio frequency corresponding to the telephone current is induced therein, the receiver inductance being connected to the input of an amplifier circuit that reversibly feeds an electroacoustic transducer device. (Machine-translation by Google Translate, not legally binding)
ES0322168A1966-01-141966-01-14Telephone amplifier apparatus. (Machine-translation by Google Translate, not legally binding)
ExpiredES322168A1
(en)