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 SE8480/70Aexternal-prioritypatent/SE344296B/xx
Priority claimed from SE848170Aexternal-prioritypatent/SE344297B/xx
Application filedfiledCritical
Publication of CS172865B4publicationCriticalpatent/CS172865B4/cs