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Priority claimed from US06/040,557external-prioritypatent/US4240293A/en
Application filed by Vortech Sciences IncfiledCriticalVortech Sciences Inc
Priority claimed from EP81901027Aexternal-prioritypatent/EP0064975B1/de
Application grantedgrantedCritical
Publication of ATE26887T1publicationCriticalpatent/ATE26887T1/de