ARANA Y ELEVADOR COMBINADOS DE ADEMADO DE POZO,申请号MX19790178553-传众专利搜索

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发明名称	ARANA Y ELEVADOR COMBINADOS DE ADEMADO DE POZO
摘要
申请公布号	MX148580(A)	申请公布日期	1983.05.11
申请号	MX19790178553	申请日期	1979.07.19
申请人	CHARLES E. GRAY	发明人	CHARLES E. GRAY
分类号	E21B19/07;E21B19/10;(IPC1-7):E21B19/00	主分类号	E21B19/07
代理机构		代理人
主权项
地址

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