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Priority claimed from JP62187264Aexternal-prioritypatent/JPH0732694B2/ja
Priority claimed from JP18726587Aexternal-prioritypatent/JPS6431895A/ja
Priority claimed from JP62187266Aexternal-prioritypatent/JPS6430561A/ja
Application filed by Asahi Denka Kogyo KkfiledCriticalAsahi Denka Kogyo Kk
Priority claimed from EP88306840Aexternal-prioritypatent/EP0301795B1/de
Application grantedgrantedCritical
Publication of ATE86827T1publicationCriticalpatent/ATE86827T1/de