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Priority claimed from DE8800407Uexternal-prioritypatent/DE8800407U1/de
Priority claimed from DE3831689Aexternal-prioritypatent/DE3831689A1/de
Application filed by Amsler Otto Wolpert WerkefiledCriticalAmsler Otto Wolpert Werke
Application grantedgrantedCritical
Publication of ATE81403T1publicationCriticalpatent/ATE81403T1/de