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Priority claimed from JP61136162Aexternal-prioritypatent/JPH0684269B2/en
Application filed by Okura Techno Res Kk, Atsushi OgurafiledCriticalOkura Techno Res Kk
Priority claimed from EP86309248Aexternal-prioritypatent/EP0225176B1/en
Application grantedgrantedCritical
Publication of ATE59371T1publicationCriticalpatent/ATE59371T1/en