VERGA PERFURATRIZ PARA PERFURACAO A PERCUSSAO;E CAMISA ADAPTADA PARA SER CONECTADA A ROSCA DE UMA VERGA PERFURATRIZ,申请号BR19870005519-传众专利搜索

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发明名称	VERGA PERFURATRIZ PARA PERFURACAO A PERCUSSAO;E CAMISA ADAPTADA PARA SER CONECTADA A ROSCA DE UMA VERGA PERFURATRIZ
摘要
申请公布号	BR8705519(A)	申请公布日期	1988.05.24
申请号	BR19870005519	申请日期	1987.10.15
申请人	SANDVIK AB.	发明人	NILS STURE HEDMAN
分类号	E21B17/042;E21B17/043;F16L15/00;(IPC1-7):E21B10/36	主分类号	E21B17/042
代理机构		代理人
主权项
地址

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