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Individual
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Individual
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Priority to ES0229493ApriorityCriticalpatent/ES229493A2/es
Publication of ES229493A2publicationCriticalpatent/ES229493A2/es
Mejoras introducidas en el objeto de la patente principal núm. 226.482 por: "un aparato de aviso silencioso", que se caracteriza porque el transmisor del movimiento al aparato, de acción mecánica reivindicado en la patente principal, puede sustituirse por un acoplamiento electro-magnético, consistente en una bobina creadora de la fuerza electro-motriz necesaria para vencer el esfuerzo realizado por una pieza y alimentada por corriente c.c. o alterna rectificada, variando los amperios vueltas de la bobina con relación al esfuerzo realizado por la pieza indicada.
ES0229493A1956-06-271956-06-27Un aparato de aviso silencioso
ExpiredES229493A2
(es)