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 Standard Duncan LtdfiledCriticalNat Standard Duncan Ltd
Priority to IN1461/CAL/76ApriorityCriticalpatent/IN144380B/en
Publication of IN144380BpublicationCriticalpatent/IN144380B/en