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 SE8306875Aexternal-prioritypatent/SE440690B/sv
Application filed by Lennart ErikssonfiledCriticalLennart Eriksson
Application grantedgrantedCritical
Publication of ATE30634T1publicationCriticalpatent/ATE30634T1/de