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 IN1487/CAL/73Aexternal-prioritypatent/IN139924B/en
Priority claimed from IT24079/75Aexternal-prioritypatent/IT1046413B/it
Application filed by Snam ProgettifiledCriticalSnam Progetti
Priority to IN957/CAL/76ApriorityCriticalpatent/IN145763B/en
Publication of IN145763BpublicationCriticalpatent/IN145763B/en