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Priority claimed from DE19853520571external-prioritypatent/DE3520571A1/de
Priority claimed from DE19863611515external-prioritypatent/DE3611515A1/de
Application filed by Netzsch Erich HoldingfiledCriticalNetzsch Erich Holding
Priority claimed from EP86107689Aexternal-prioritypatent/EP0208899B1/de
Application grantedgrantedCritical
Publication of ATE45510T1publicationCriticalpatent/ATE45510T1/de