Formation notching apparatus,申请号US19600019792-传众专利搜索

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发明名称	Formation notching apparatus
摘要
申请公布号	US3050122(A)	申请公布日期	1962.08.21
申请号	US19600019792	申请日期	1960.04.04
申请人	GULF RESEARCH & DEVELOPMENT COMPANY	发明人	HUITT JIMMIE L.;PEKAREK JOSEPH L.;JR. EDWARD TOPANELIAN,
分类号	E21B10/32;E21B29/00;E21B47/09	主分类号	E21B10/32
代理机构		代理人
主权项
地址

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