ESTABILIZADOR PARA ESTABILIZAR UMA CABECA CORTANTE DENTRO DE UM FURO QUE ESTA SENDO ABERTO,E COLUNA DE PERFURACAO OU SEMELHANTE,申请号BR19800004437-传众专利搜索

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发明名称	ESTABILIZADOR PARA ESTABILIZAR UMA CABECA CORTANTE DENTRO DE UM FURO QUE ESTA SENDO ABERTO,E COLUNA DE PERFURACAO OU SEMELHANTE
摘要
申请公布号	BR8004437(A)	申请公布日期	1981.01.27
申请号	BR19800004437	申请日期	1980.07.17
申请人	INCO LTD	发明人	ENGLAND J
分类号	E21B17/10;(IPC1-7):E21B7/00	主分类号	E21B17/10
代理机构		代理人
主权项
地址

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