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 ES23403ApriorityCriticalpatent/ES23403A1/es
Publication of ES23403A1publicationCriticalpatent/ES23403A1/es
ES23403A1898-11-211898-11-21Un sistema completamente nuevo para suavizar las curvas de cable aéreo en la tracción de tranvías eléctricos.
ExpiredES23403A1
(es)