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Individual
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Individual
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Priority to ES0313343ApriorityCriticalpatent/ES313343A1/es
Publication of ES313343A1publicationCriticalpatent/ES313343A1/es
ES0313343A1965-05-081965-05-08Sistema de proteccion de elementos electricos trifasicos, con desconexion automatica cuando falta una o mas fases
ExpiredES313343A1
(es)
Improvements in or relating to the protection of polyphase alternating current or multi-wire direct current circuits or systems against failure of current in the supply lines