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发明名称	WELL CEMENTING DEVICE
摘要
申请公布号	CA856025(A)	申请公布日期	1970.11.17
申请号	CAD856025	申请日期
申请人	G.W. MURPHY INDUSTRIES	发明人	WAYNE F. NELSON
分类号		主分类号
代理机构		代理人
主权项
地址

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