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Priority claimed from US06/502,261external-prioritypatent/US4526826A/en
Application filed by Stemcor CorpfiledCriticalStemcor Corp
Priority claimed from EP84303902Aexternal-prioritypatent/EP0156055B1/de
Application grantedgrantedCritical
Publication of ATE31748T1publicationCriticalpatent/ATE31748T1/de