Pack-off tool,申请号US19650471618-传众专利搜索

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发明名称	Pack-off tool
摘要
申请公布号	US3356139(A)	申请公布日期	1967.12.05
申请号	US19650471618	申请日期	1965.07.13
申请人	MERLA TOOL CORPORATION	发明人	LAMB CHARLES P.;DUDLEY WILLIAM A.
分类号	E21B33/129;E21B43/12	主分类号	E21B33/129
代理机构		代理人
主权项
地址

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