CEMENT PLACEMENT TOOL AND METHOD,申请号USD3481402-传众专利搜索

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发明名称	CEMENT PLACEMENT TOOL AND METHOD
摘要
申请公布号	US3481402(A)	申请公布日期	1969.12.02
申请号	USD3481402	申请日期	1968.01.30
申请人	GULF OIL CORP.	发明人	JOSEPH K. BECKETT
分类号	E21B33/13;(IPC1-7):E21B33/13;E21B43/00	主分类号	E21B33/13
代理机构		代理人
主权项
地址

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