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
Application filed by Colour Chem LtdfiledCriticalColour Chem Ltd
Priority to IN32/BOM/74ApriorityCriticalpatent/IN139823B/en
Priority to IN390/BOM/74Aprioritypatent/IN139826B/en
Publication of IN139823BpublicationCriticalpatent/IN139823B/en