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Priority claimed from DE19848401113Uexternal-prioritypatent/DE8401113U1/de
Priority claimed from DE19843426119external-prioritypatent/DE3426119C2/de
Application filed by Dyckerhoff & Widmann AgfiledCriticalDyckerhoff & Widmann Ag
Priority claimed from EP84116048Aexternal-prioritypatent/EP0149204B1/de
Application grantedgrantedCritical
Publication of ATE41458T1publicationCriticalpatent/ATE41458T1/de