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 PCT/US1991/002799external-prioritypatent/WO1992016574A1/en
Application filed by Material Tech & SciencefiledCriticalMaterial Tech & Science
Publication of NO940630LpublicationCriticalpatent/NO940630L/en
Publication of NO940630D0publicationCriticalpatent/NO940630D0/en