,申请号BG19750029675-传众专利搜索

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发明名称
摘要
申请公布号	BG22202(A1)	申请公布日期	1977.02.20
申请号	BG19750029675	申请日期	1975.04.16
申请人		发明人
分类号	C04B7/00;C04B7/02;(IPC1-7):C04B7/00	主分类号	C04B7/00
代理机构		代理人
主权项
地址

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