HIGH VOLUME MAIN VALVE FOR FORMATION TESTERS,申请号USD3526278-传众专利搜索

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发明名称	HIGH VOLUME MAIN VALVE FOR FORMATION TESTERS
摘要
申请公布号	US3526278(A)	申请公布日期	1970.09.01
申请号	USD3526278	申请日期	1968.04.16
申请人	BYRON JACKSON INC.	发明人	LYLE B. SCOTT
分类号	E21B34/12;(IPC1-7):E21B33/00	主分类号	E21B34/12
代理机构		代理人
主权项
地址

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