Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Nokia Spain SA
Original Assignee
Alcatel Espana SA
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Filing date
Publication date
Priority claimed from GB26730/56Aexternal-prioritypatent/GB859111A/en
Application filed by Alcatel Espana SAfiledCriticalAlcatel Espana SA
Publication of ES239198A1publicationCriticalpatent/ES239198A1/es
Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms
(AREA)
Abstract
Mejoras en o relativas a aparatos telefónicos de abonado que analizan amplificadores, caracterizado que incluye un transmisor y un transistor en serie con el transmisor con lo que las señales de conversación generados en el transmisor son amplificados por el transistor.
ES0239198A1956-08-311957-12-18Mejoras en o relativas a aparatos telefonicos de abonado que utilizan amplificadores
ExpiredES239198A1
(es)