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
Priority claimed from IN1423/CAL/75Aexternal-prioritypatent/IN142269B/en
Priority claimed from GB25822/76Aexternal-prioritypatent/GB1578137A/en
Application filed by Cav LtdfiledCriticalCav Ltd
Priority to IN921/CAL/77ApriorityCriticalpatent/IN146534B/en
Publication of IN146534BpublicationCriticalpatent/IN146534B/en