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发明名称
SAPA DE FORARE
摘要
申请公布号
RO82423(A2)
申请公布日期
1983.09.26
申请号
RO19810103621
申请日期
1981.03.09
申请人
INTREPRINDEREA "1 MAI",RO
发明人
VIRON,PETRE,RO
分类号
E21B10/22;(IPC1-7):E21B10/22
主分类号
E21B10/22
代理机构
代理人
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地址
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