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 SE8402711Aexternal-prioritypatent/SE444603B/en
Application filed by Tom PettersonfiledCriticalTom Petterson
Application grantedgrantedCritical
Publication of ATE55813T1publicationCriticalpatent/ATE55813T1/en