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Priority claimed from JP1287989Aexternal-prioritypatent/JPH0251664A/en
Priority claimed from JP1049352Aexternal-prioritypatent/JPH02229962A/en
Application filed by Tatsuta Densen KkfiledCriticalTatsuta Densen Kk
Priority claimed from EP89905777Aexternal-prioritypatent/EP0396755B1/en
Application grantedgrantedCritical
Publication of ATE93594T1publicationCriticalpatent/ATE93594T1/en