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发明名称
UN DISPOSITIVO DE PROLONGACIËN PARA APARATOS DE APUNTALAMIENTO EN MINAS
摘要
申请公布号
ES274080(A1)
申请公布日期
1962.04.16
申请号
ES19800002740
申请日期
1962.01.26
申请人
J. SABES & CIE.
发明人
分类号
E21D17/086;(IPC1-7):E21D17/086
主分类号
E21D17/086
代理机构
代理人
主权项
地址
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