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Priority to ES0293130ApriorityCriticalpatent/ES293130A1/en
Publication of ES293130A1publicationCriticalpatent/ES293130A1/en
Improvements in electric water heaters, characterized by having provided a transformer, with the primary circuit susceptible to take various voltages, and whose secondary, is constituted by a metal tube through which the water to heat, closing the circuit of this secondary a metallic piece suitable to obtain said circuit the intensities necessary to achieve high temperatures in said tube. (Machine-translation by Google Translate, not legally binding)
ES0293130A1963-11-021963-11-02Improvements in electrical water heaters (Machine-translation by Google Translate, not legally binding)
ExpiredES293130A1
(en)