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 US08/066,307external-prioritypatent/US5460017A/en
Application filed by Gary R Taylor, Paul Wierzba, R Craig HannahfiledCriticalGary R Taylor
Publication of ZA943513BpublicationCriticalpatent/ZA943513B/en