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Priority to ES0294594ApriorityCriticalpatent/ES294594A1/en
Publication of ES294594A1publicationCriticalpatent/ES294594A1/en
IMPROVEMENTS IN MOTOR ELEMENTS, essentially characterized by producing a flat stock, from which center a stationary cylinder emerges, endowing said stock with a concentric ring, protruding from it and of smaller dimensions, whose edge has been obtained according to a spiral plane in the that a step has been practiced with inclined preference. (Machine-translation by Google Translate, not legally binding)
ES0294594A1963-12-171963-12-17Improvements in motor elements (Machine-translation by Google Translate, not legally binding)
ExpiredES294594A1
(en)
Improvements introduced in the manufacture of piston segments, especially for internal combustión engines (Machine-translation by Google Translate, not legally binding)