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.)
Arnold Conway
Gresham & Craven Ltd
Marsh Gerald Cranton
Original Assignee
Arnold Conway
Gresham & Craven Ltd
Marsh Gerald Cranton
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 Arnold Conway, Gresham & Craven Ltd, Marsh Gerald CrantonfiledCriticalArnold Conway
Priority to ES143916ApriorityCriticalpatent/ES143916A1/es
Publication of ES143916A1publicationCriticalpatent/ES143916A1/es
ES143916A1937-10-281937-10-28Perfeccionamientos en la construcción de aparatos de freno por vacío para ferrocarriles y vehículos análogos.
ExpiredES143916A1
(es)