,申请号PL19740172730-传众专利搜索

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发明名称
摘要
申请公布号	PL93330(B1)	申请公布日期	1977.05.30
申请号	PL19740172730	申请日期	1974.07.13
申请人		发明人
分类号	C01B17/04;(IPC1-7):C01B17/04	主分类号	C01B17/04
代理机构		代理人
主权项
地址

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