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Priority claimed from JP35531896Aexternal-prioritypatent/JP3205793B2/ja
Application filed by Osaka Municipal Technical Research Institute, Tomoe Works Co., Ltd., Daiken Chemical Co., Ltd.filedCriticalOsaka Municipal Technical Research Institute
Publication of HK1023961A1publicationCriticalpatent/HK1023961A1/zh
Publication of HK1023961BpublicationCriticalpatent/HK1023961B/zh