METODO Y APARATO PARA RETIRAR TAPONAMIENTOS DE ARENA DE UN POZO DE BAJA PRESION,申请号AR19770267425-传众专利搜索

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发明名称	METODO Y APARATO PARA RETIRAR TAPONAMIENTOS DE ARENA DE UN POZO DE BAJA PRESION
摘要
申请公布号	AR216464(A1)	申请公布日期	1979.12.28
申请号	AR19770267425	申请日期	1977.04.29
申请人	TEXACO TRINIDAD INC	发明人
分类号	E21B21/00;E21B37/00;E21B43/34;(IPC1-7):E21D/	主分类号	E21B21/00
代理机构		代理人
主权项
地址

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