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 IN704/DEL/84ApriorityCriticalpatent/IN161379B/en
Publication of IN161379BpublicationCriticalpatent/IN161379B/en