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Priority claimed from JP29857985Aexternal-prioritypatent/JPS61273360A/en
Application filed by Nippon Film Ind, Toyo Aluminium KkfiledCriticalNippon Film Ind
Priority claimed from EP19860100958external-prioritypatent/EP0189868B1/en
Application grantedgrantedCritical
Publication of ATE61541T1publicationCriticalpatent/ATE61541T1/en