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.)
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Priority claimed from CH5567/81Aexternal-prioritypatent/CH657383A5/en
Application filed by AlusuissefiledCriticalAlusuisse
Priority to YU1719/82ApriorityCriticalpatent/YU44120B/en
Publication of YU171982ApublicationCriticalpatent/YU171982A/en
Publication of YU44120BpublicationCriticalpatent/YU44120B/en