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Priority claimed from DE19873724209external-prioritypatent/DE3724209A1/en
Priority claimed from DE8710019Uexternal-prioritypatent/DE8710019U1/en
Application filed by Fritz LangfiledCriticalFritz Lang
Priority claimed from EP87116940Aexternal-prioritypatent/EP0300092B1/en
Application grantedgrantedCritical
Publication of ATE85231T1publicationCriticalpatent/ATE85231T1/en