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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carpenter F Fairfield
Original Assignee
Carpenter F Fairfield
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Carpenter F FairfieldfiledCriticalCarpenter F Fairfield
Priority to ES4538ApriorityCriticalpatent/ES4538A3/es
Publication of ES4538A3publicationCriticalpatent/ES4538A3/es
Aparatos perfeccionados que tienen su aplicación en los trenes de Ferrocarril provistos de frenos neumáticos para que los pasajeros puedan hacer señales a los maquinistas y conductores o guarda-frenos.