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 ES36517ApriorityCriticalpatent/ES36517A1/es
Publication of ES36517A1publicationCriticalpatent/ES36517A1/es
Un sistema o aprovechamiento de la fuerza de contramarcha del tranvía eléctrico para producir por este medio el cambio automático del trolley de los tranvías eléctricos.