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 SE8803657Aexternal-prioritypatent/SE8803657L/
Application filed by Kurt BystroemfiledCriticalKurt Bystroem
Application grantedgrantedCritical
Publication of ATE89393T1publicationCriticalpatent/ATE89393T1/de