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Priority to ES304862ApriorityCriticalpatent/ES304862A1/en
Publication of ES304862A1publicationCriticalpatent/ES304862A1/en
Improvements in double cylinder cylinders, characterized by the fact that they have been provided with a crank that drives on a toothed pinion, which in turn engages and drives another traction toothed wheel that in turn transmits its turn to a similar one, supporting the previous. (Machine-translation by Google Translate, not legally binding)
ES304862A1964-10-101964-10-10Improvements in double cylinder multicops (Machine-translation by Google Translate, not legally binding)
ExpiredES304862A1
(en)