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Individual
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Individual
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Priority to ES0260670ApriorityCriticalpatent/ES260670A1/es
Publication of ES260670A1publicationCriticalpatent/ES260670A1/es
Un sistema de timbre bifónico, caracterizado porque consiste en una conjunta disposición de elementos con una especial distribución eléctrica, que consta de las siguientes partes principales: a) La estructura peculiar del timbre bifónico; b) La colocación de sus elementos dentro de la campana.
ES0260670A1960-08-301960-08-30Sistema de timbre bifënico
ExpiredES260670A1
(es)