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 IN128/CAL/87Aexternal-prioritypatent/IN166538B/en
Priority claimed from PCT/US1987/000313external-prioritypatent/WO1987005007A1/en
Application filed by Manville CorpfiledCriticalManville Corp
Priority to IN902/CAL/89ApriorityCriticalpatent/IN169752B/en
Publication of IN169752BpublicationCriticalpatent/IN169752B/en