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 US06/486,561external-prioritypatent/US4472747A/en
Application filed by Compusonics CorpfiledCriticalCompusonics Corp
Application grantedgrantedCritical
Publication of ATE84895T1publicationCriticalpatent/ATE84895T1/de