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Individual
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Individual
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Priority to ES0263239ApriorityCriticalpatent/ES263239A1/en
Publication of ES263239A1publicationCriticalpatent/ES263239A1/en
An oil heater essentially characterized by the circumstance of being constituted by two cylinders, constructed in any suitable material, of different diameter and concentric, the smaller diameter being therefore located within the larger one, and with the circumstance also characteristic that the the inner cylinder protrudes from the upper part of the edge of the outer cylinder, and the latter, on the opposite side, that is, its base, has a greater length than the inner cylinder. (Machine-translation by Google Translate, not legally binding)
ES0263239A1960-12-141960-12-14An oil heater (Machine-translation by Google Translate, not legally binding)
ExpiredES263239A1
(en)