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Individual
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Individual
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Priority to ES0238736ApriorityCriticalpatent/ES238736A1/es
Publication of ES238736A1publicationCriticalpatent/ES238736A1/es
Aparato eléctrico mecánico que por alarma denuncia la existencia en el aire de gases combustibles, caracterizado esencialmente por un conductor eléctrico se hace girar a un disco o rotor que lleva un piñón en el centro de su eje y que engrana con una rueda dentada.
ES0238736A1957-11-231957-11-23APARATO ELÉCTRICO MECáNICO QUE POR ALARMA DENUNCIA LA EXISTENCIA EN EL AIRE DE GASES COMBUSTIBLES
ExpiredES238736A1
(es)
Improvements in or relating to methods of manufacturing, by photographic agency, external, electrically conductive noble - metal layers on non - metallic, non - electrically conductive supports and to products manufactured by these methods
Improvements in or relating to methods of manufacturing, by photographic agency, external, electrically conductive noble - metal layers on non - metallic, non - electrically conductive supports and to products manufactured by these methods