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 US06/170,023external-prioritypatent/US4298475A/en
Application filed by William J GartnerfiledCriticalWilliam J Gartner
Application grantedgrantedCritical
Publication of ATE12734T1publicationCriticalpatent/ATE12734T1/de