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Priority to ES277748ApriorityCriticalpatent/ES277748A1/en
Publication of ES277748A1publicationCriticalpatent/ES277748A1/en
Electrical liquid heating device, essentially characterized by a head and base respectively joining collector tubes, forming a block that accommodates another block internally formed by a head of thermal tubes, in which another tube has been introduced. refractory material and within this the electrical resistance. (Machine-translation by Google Translate, not legally binding)
ES277748A1962-05-281962-05-28Electrical equipment liquid heater (Machine-translation by Google Translate, not legally binding)
ExpiredES277748A1
(en)