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Priority claimed from DE19818120545external-prioritypatent/DE8120545U1/de
Priority claimed from DE19828218774external-prioritypatent/DE8218774U1/de
Application filed by Bergwerksverband GmbhfiledCriticalBergwerksverband Gmbh
Priority claimed from EP82106230Aexternal-prioritypatent/EP0070027B1/de
Application grantedgrantedCritical
Publication of ATE29551T1publicationCriticalpatent/ATE29551T1/de