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Priority claimed from US06/290,220external-prioritypatent/US4446342A/en
Priority claimed from US06/318,202external-prioritypatent/US4402131A/en
Application filed by Miraco IncfiledCriticalMiraco Inc
Priority claimed from EP19810305809external-prioritypatent/EP0055053B1/de
Application grantedgrantedCritical
Publication of ATE23002T1publicationCriticalpatent/ATE23002T1/de