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发明名称
摘要
申请公布号	NL6411245(A)	申请公布日期	1965.03.29
申请号	NL19640011245	申请日期	1964.09.26
申请人		发明人
分类号	E21B41/00;G01S1/72;G01S15/74	主分类号	E21B41/00
代理机构		代理人
主权项
地址

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