,申请号NL19640009213-传众专利搜索

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发明名称
摘要
申请公布号	NL6409213(A)	申请公布日期	1965.02.15
申请号	NL19640009213	申请日期	1964.08.11
申请人		发明人
分类号	C09K8/38;C09K8/52;E21B21/14	主分类号	C09K8/38
代理机构		代理人
主权项
地址

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