CABECA PARA INSTALACOES DE PERFURACAO,申请号PT19870084307-传众专利搜索

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发明名称	CABECA PARA INSTALACOES DE PERFURACAO
摘要
申请公布号	PT84307(B)	申请公布日期	1993.09.30
申请号	PT19870084307	申请日期	1987.02.17
申请人	TALLERES ROYSES, S. L.	发明人
分类号	E21B17/00;(IPC1-7):E21B17/00	主分类号	E21B17/00
代理机构		代理人
主权项
地址

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