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 Carborundum CofiledCriticalCarborundum Co
Priority to IN195/CAL/1975ApriorityCriticalpatent/IN143228B/en
Publication of IN143228BpublicationCriticalpatent/IN143228B/en
