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Priority claimed from BE0/216610Aexternal-prioritypatent/BE904707A/fr
Application filed by Claude J RogerfiledCriticalClaude J Roger
Priority claimed from EP19870902356external-prioritypatent/EP0302869B1/de
Application grantedgrantedCritical
Publication of ATE54713T1publicationCriticalpatent/ATE54713T1/de