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Priority claimed from NL8002464Aexternal-prioritypatent/NL8002464A/en
Priority claimed from NL8002463Aexternal-prioritypatent/NL8002463A/en
Application filed by StamicarbonfiledCriticalStamicarbon
Priority claimed from EP81200457Aexternal-prioritypatent/EP0040443B1/en
Application grantedgrantedCritical
Publication of ATE14892T1publicationCriticalpatent/ATE14892T1/en