TORQUE-RESPONSIVE EXPANDIBLE CORE PLUG,申请号USD3584714-传众专利搜索

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发明名称	TORQUE-RESPONSIVE EXPANDIBLE CORE PLUG
摘要
申请公布号	US3584714(A)	申请公布日期	1971.06.15
申请号	USD3584714	申请日期	1969.09.08
申请人	TRI-COUNTY REALTY CORP.	发明人	EDWARD L. RYSWICK
分类号	F16D3/12;(IPC1-7):F16D43/21	主分类号	F16D3/12
代理机构		代理人
主权项
地址

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