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
Priority claimed from US861884Aexternal-prioritypatent/US3139583A/en
Priority claimed from US12056Aexternal-prioritypatent/US2978576A/en
Application filed by Gen ElectricfiledCriticalGen Electric
Publication of BE598497ApublicationCriticalpatent/BE598497A/en