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Priority claimed from JP62240183Aexternal-prioritypatent/JPS6483606A/ja
Priority claimed from JP62260603Aexternal-prioritypatent/JP2596000B2/ja
Priority claimed from JP62260604Aexternal-prioritypatent/JP2596001B2/ja
Priority claimed from JP62260606Aexternal-prioritypatent/JP2596003B2/ja
Application filed by Nippon Kokan KkfiledCriticalNippon Kokan Kk
Priority claimed from EP88115580Aexternal-prioritypatent/EP0308925B1/de
Application grantedgrantedCritical
Publication of ATE88218T1publicationCriticalpatent/ATE88218T1/de