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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Individual
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Individual
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Application filed by IndividualfiledCriticalIndividual
Priority to ES0008875UpriorityCriticalpatent/ES8875Y/es
Publication of ES8875UpublicationCriticalpatent/ES8875U/es
Application grantedgrantedCritical
Publication of ES8875YpublicationCriticalpatent/ES8875Y/es
Por que, en general, es un aparato de amplificación a base de altavoces dinámicos con excitación de imán permanente y una lámpara rectificadora por dos amplificadoras por cada equipo, pudiendo ser en vez de tres lámparas, una rectificadora y otra amplificadora de servicios múltiples.
ES0008875U1943-08-101943-08-10Aparato amplificador para comunicación interior en alta voz.
ExpiredES8875Y
(es)