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Priority claimed from SE8401897Aexternal-prioritypatent/SE450961B/sv
Priority claimed from SE8401896Aexternal-prioritypatent/SE452178C/sv
Application filed by Hansson Elof HbfiledCriticalHansson Elof Hb
Priority claimed from EP19850850123external-prioritypatent/EP0161226B1/de
Application grantedgrantedCritical
Publication of ATE61164T1publicationCriticalpatent/ATE61164T1/de