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 Nat Council Cement & BuildingfiledCriticalNat Council Cement & Building
Priority to IN14/DEL/85ApriorityCriticalpatent/IN163104B/en
Publication of IN163104BpublicationCriticalpatent/IN163104B/en