GAS LIFT VALVE AND SYSTEM,申请号USD3613712-传众专利搜索

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发明名称	GAS LIFT VALVE AND SYSTEM
摘要
申请公布号	US3613712(A)	申请公布日期	1971.10.19
申请号	USD3613712	申请日期	1970.06.24
申请人	UDELL GARRETT INC.	发明人	HENRY U. GARRETT
分类号	E21B43/12;(IPC1-7):F04F1/08	主分类号	E21B43/12
代理机构		代理人
主权项
地址

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