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 IN752/DEL/87Aexternal-prioritypatent/IN171791B/en
Application filed by Geon CofiledCriticalGeon Co
Priority to IN708DE1990priorityCriticalpatent/IN179083B/en
Publication of IN179083BpublicationCriticalpatent/IN179083B/en