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 US06/039,497external-prioritypatent/US4324350A/en
Application filed by Kenneth W ThompsonfiledCriticalKenneth W Thompson
Publication of MX150331ApublicationCriticalpatent/MX150331A/en