Sucker rod coupling,申请号US19390251731-传众专利搜索

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发明名称	Sucker rod coupling
摘要
申请公布号	US2244104(A)	申请公布日期	1941.06.03
申请号	US19390251731	申请日期	1939.01.19
申请人	FITZPATRICK JEREMIAH J	发明人	FITZPATRICK JEREMIAH J.
分类号	E21B10/00;E21B17/046	主分类号	E21B10/00
代理机构		代理人
主权项
地址

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