PROTECTOR MEJORADO PARA TUBERIA DE PERFORACION DE POZOS PETROLEROS,申请号MX19760100418U-传众专利搜索

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发明名称	PROTECTOR MEJORADO PARA TUBERIA DE PERFORACION DE POZOS PETROLEROS
摘要
申请公布号	MX3584(E)	申请公布日期	1981.03.19
申请号	MX19760100418U	申请日期	1976.12.06
申请人	BJ-HUGHES INC	发明人	GRAY CHARLES ALEXANDER
分类号	E21B17/10;(IPC1-7):E21B17/10	主分类号	E21B17/10
代理机构		代理人
主权项
地址

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