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 IN371/DEL/85Aexternal-prioritypatent/IN169232B/en
Application filed by Broken Hill Pty Co LtdfiledCriticalBroken Hill Pty Co Ltd
Priority to IN54/DEL/88ApriorityCriticalpatent/IN169274B/en
Publication of IN169274BpublicationCriticalpatent/IN169274B/en