Stabilized knuckle joint,申请号US19590857763-传众专利搜索

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发明名称	Stabilized knuckle joint
摘要
申请公布号	US3156310(A)	申请公布日期	1964.11.10
申请号	US19590857763	申请日期	1959.12.07
申请人	EASTMAN OIL WELL SURVEY COMPANY	发明人	FRISBY THOMAS M.
分类号	E21B7/06;E21B7/08	主分类号	E21B7/06
代理机构		代理人
主权项
地址

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