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 IT20798/79Aexternal-prioritypatent/IT1113421B/it
Application filed by Anic Spa, Snam ProgettifiledCriticalAnic Spa
Priority to AT309582ApriorityCriticalpatent/AT382626B/de
Publication of ATA309582ApublicationCriticalpatent/ATA309582A/de
Application grantedgrantedCritical
Publication of AT382626BpublicationCriticalpatent/AT382626B/de