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Individual
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Individual
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Priority to ES0003980UpriorityCriticalpatent/ES3980Y/es
Publication of ES3980UpublicationCriticalpatent/ES3980U/es
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Publication of ES3980YpublicationCriticalpatent/ES3980Y/es
Un dispositivo de reparación de luz en las lámparas eléctricas de incandescencia, que esencialmente consiste en un lente de refracción producido en la ampolla de dichas lámparas con la masa de vidrio o cristal con que está formada la referida ampolla.
ES0003980U1935-07-151935-07-15Dispositivo de refrigeración de luz en las lámparas eléctricas de incandescencia.
ExpiredES3980Y
(es)
Nuevo tipo de lamparaelectrica de incandescencia en elvacio, desmontable, permitiendoel recambio de cualquiera de suspiezas, incluso solo del filamento