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.)
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Publication date
Priority claimed from IN90/DEL/82Aexternal-prioritypatent/IN157545B/en
Application filed by Standard Oil CofiledCriticalStandard Oil Co
Priority to IN922/DEL/86ApriorityCriticalpatent/IN165760B/en
Publication of IN165760BpublicationCriticalpatent/IN165760B/en