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发明名称
摘要
申请公布号	DD127369(A1)	申请公布日期	1977.09.21
申请号	DD19760194601	申请日期	1976.09.03
申请人		发明人
分类号	(IPC1-7):C02C1/40;C02C5/02	主分类号	(IPC1-7):C02C1/40
代理机构		代理人
主权项
地址

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