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
Application filed by Cabot CorpfiledCriticalCabot Corp
Priority to IE92289ApriorityCriticalpatent/IE890922L/en
Publication of IE890922LpublicationCriticalpatent/IE890922L/en