Subsurface well apparatus with packing structures,申请号US19620190907-传众专利搜索

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发明名称	Subsurface well apparatus with packing structures
摘要
申请公布号	US3109493(A)	申请公布日期	1963.11.05
申请号	US19620190907	申请日期	1962.04.30
申请人	BAKER OIL TOOLS, INC.	发明人	CARTER THOMAS J.
分类号	E21B33/12;E21B33/129	主分类号	E21B33/12
代理机构		代理人
主权项
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