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Priority claimed from US06/227,838external-prioritypatent/US4364156A/en
Priority claimed from US06/227,828external-prioritypatent/US4393562A/en
Application filed by Milliken Res CorpfiledCriticalMilliken Res Corp
Priority claimed from EP19820300329external-prioritypatent/EP0059029B1/de
Application grantedgrantedCritical
Publication of ATE12797T1publicationCriticalpatent/ATE12797T1/de