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 Manville CorpfiledCriticalManville Corp
Priority claimed from PCT/US1988/001563external-prioritypatent/WO1988009750A1/en
Application grantedgrantedCritical
Publication of ATE95483T1publicationCriticalpatent/ATE95483T1/en