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Mejoras caracterizadas por establecerse un pulsador desconectador en la tenaza porta-electrodos para que en cualquier momento determinado pueda el operarioa su voluntadinterponer el cristal inactinicoaún antes de que se produzca el arco.
ES0168307A1944-12-061944-12-06Mejoras introducidas con el objeto de la patente
ExpiredES168307A2
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