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Priority claimed from US06/509,743external-prioritypatent/US4471827A/en
Application filed by Dev Technologique Sa SocfiledCriticalDev Technologique Sa Soc
Priority claimed from EP83305039Aexternal-prioritypatent/EP0104797B1/de
Application grantedgrantedCritical
Publication of ATE38960T1publicationCriticalpatent/ATE38960T1/de