Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Individual
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Individual
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Priority to ES170513ApriorityCriticalpatent/ES170513A1/es
Publication of ES170513A1publicationCriticalpatent/ES170513A1/es
ES170513A1945-07-191945-07-19Un sistema mecánico para el cambio automático de velocidades entre un árbol motor y otro resistente
ExpiredES170513A1
(es)