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Priority claimed from DE3901873Aexternal-prioritypatent/DE3901873A1/de
Priority claimed from DE8903093Uexternal-prioritypatent/DE8903093U1/de
Priority claimed from DE8912563Uexternal-prioritypatent/DE8912563U1/de
Priority claimed from DE8915303Uexternal-prioritypatent/DE8915303U1/de
Application filed by Wilhelm JunkerfiledCriticalWilhelm Junker
Priority claimed from EP90101331Aexternal-prioritypatent/EP0380062B1/de
Application grantedgrantedCritical
Publication of ATE88770T1publicationCriticalpatent/ATE88770T1/de