DRILLING FLUID PIPE CONDUIT SYSTEM IN A DRILLING FLUID PUMPING UNITAGREGATE BUROVOGO RASTVORA,申请号PL19780209112-传众专利搜索

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发明名称	DRILLING FLUID PIPE CONDUIT SYSTEM IN A DRILLING FLUID PUMPING UNITAGREGATE BUROVOGO RASTVORA
摘要
申请公布号	PL118759(B1)	申请公布日期	1981.10.31
申请号	PL19780209112	申请日期	1978.08.18
申请人		发明人
分类号	E21B;E21B21/00;(IPC1-7):E21B21/00	主分类号	E21B
代理机构		代理人
主权项
地址

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