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 ES373740ApriorityCriticalpatent/ES373740A1/es
Publication of ES373740A1publicationCriticalpatent/ES373740A1/es
ES373740A1969-11-201969-11-20Perfeccionamientos introducidos en los dispositivos de se- guridad para circulacion de ferrocarriles.
ExpiredES373740A1
(es)