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.)
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Priority claimed from GB3784775Aexternal-prioritypatent/GB1543550A/en
Priority claimed from US05/667,309external-prioritypatent/US4053161A/en
Application filed by Rca CorpfiledCriticalRca Corp
Publication of HK27380ApublicationCriticalpatent/HK27380A/en