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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Eppelsheimer William E
Original Assignee
Eppelsheimer William E
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Filing date
Publication date
Application filed by Eppelsheimer William EfiledCriticalEppelsheimer William E
Priority to ES171ApriorityCriticalpatent/ES171A1/es
Publication of ES171A1publicationCriticalpatent/ES171A1/es
Mejoras en montajes para facilitar la transmisión de señales por los pasajeros en los coches de ferrocarriles, a los conductores o guardas de los trenes.