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Priority claimed from JP6148186Aexternal-prioritypatent/JPH0814495A/ja
Priority claimed from JP6168028Aexternal-prioritypatent/JP3037073B2/ja
Application filed by Kobe Steel Ltd, Osaka Gas Co LtdfiledCriticalKobe Steel Ltd
Application grantedgrantedCritical
Publication of TW288099BpublicationCriticalpatent/TW288099B/zh