MEJORAS EN ESTABILIZADOR FRICCIONAL DE ROCA Y METODO PARA SU INSERCION EN UN AGUJERO DE ESTRUCTURA DE TIERRA,申请号MX19810187299-传众专利搜索

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发明名称	MEJORAS EN ESTABILIZADOR FRICCIONAL DE ROCA Y METODO PARA SU INSERCION EN UN AGUJERO DE ESTRUCTURA DE TIERRA
摘要
申请公布号	MX153224(A)	申请公布日期	1986.08.27
申请号	MX19810187299	申请日期	1981.05.14
申请人	INGERSOLL-RAND COMPANY	发明人	JAMES FERNAND CANTREL
分类号	E21D9/00;(IPC1-7):E21D9/00;E21D10/00	主分类号	E21D9/00
代理机构		代理人
主权项
地址

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