SISTEMA E PROCESSO PARA A INSTALACAO DE UM ENVOLTORIO PARA PRODUTOS AO LONGO DE UMA TRAJETORIA SUBTERRANEA,申请号BR19760004651-传众专利搜索

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发明名称	SISTEMA E PROCESSO PARA A INSTALACAO DE UM ENVOLTORIO PARA PRODUTOS AO LONGO DE UMA TRAJETORIA SUBTERRANEA
摘要
申请公布号	BR7604651(A)	申请公布日期	1977.08.02
申请号	BR19760004651	申请日期	1976.07.14
申请人	TIDRIL CORP	发明人	CHERRINGTON M
分类号	E21D9/093;E02F5/18;E21B7/04;E21B7/20;E21B7/28;E21D9/06;(IPC1-7):E02D29/00	主分类号	E21D9/093
代理机构		代理人
主权项
地址

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