WELL BORE CASING HANGER APPARATUS,申请号USD3492026-传众专利搜索

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发明名称	WELL BORE CASING HANGER APPARATUS
摘要
申请公布号	US3492026(A)	申请公布日期	1970.01.27
申请号	USD3492026	申请日期	1965.10.23
申请人	VENTURA TOOL CO.	发明人	ARTHUR G. AHLSTONE
分类号	E21B33/043;(IPC1-7):F16L35/00;F16L55/00	主分类号	E21B33/043
代理机构		代理人
主权项
地址

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