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Priority claimed from DE19863636713external-prioritypatent/DE3636713A1/en
Priority claimed from DE3711117Aexternal-prioritypatent/DE3711117C2/en
Application filed by Ernst KirchhofffiledCriticalErnst Kirchhoff
Application grantedgrantedCritical
Publication of ATE74490T1publicationCriticalpatent/ATE74490T1/en