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 IN801/DEL/84Aexternal-prioritypatent/IN161237B/en
Application filed by Harsco CorpfiledCriticalHarsco Corp
Priority to IN127/DEL/87ApriorityCriticalpatent/IN166730B/en
Publication of IN166730BpublicationCriticalpatent/IN166730B/en