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 GB1786774Aexternal-prioritypatent/GB1465641A/en
Application filed by Sperry Rand CorpfiledCriticalSperry Rand Corp
Publication of DK556874ApublicationCriticalpatent/DK556874A/da