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 US06/024,848external-prioritypatent/US4201881A/en
Application filed by Wisconsin Alumni Res FoundfiledCriticalWisconsin Alumni Res Found
Publication of DK582283ApublicationCriticalpatent/DK582283A/en
Publication of DK582283D0publicationCriticalpatent/DK582283D0/en
Publication of DK147525BpublicationCriticalpatent/DK147525B/en
Application grantedgrantedCritical
Publication of DK147525CpublicationCriticalpatent/DK147525C/en