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Priority claimed from JP62249196Aexternal-prioritypatent/JPH0819251B2/en
Priority claimed from JP62335859Aexternal-prioritypatent/JPH0745717B2/en
Application filed by Polyplastics CofiledCriticalPolyplastics Co
Priority claimed from EP19880304473external-prioritypatent/EP0311232B2/en
Application grantedgrantedCritical
Publication of ATE95210T1publicationCriticalpatent/ATE95210T1/en