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发明名称
DISPOZITIV DE FORARE
摘要
申请公布号
RO72524(A2)
申请公布日期
1981.11.04
申请号
RO19770090406
申请日期
1977.05.20
申请人
INTREPRINDEREA "1 MAI",RO
发明人
SAVULESCU,VICTOR,RO;MITU,VELICU,RO
分类号
E21B3/02;(IPC1-7):E21B3/02
主分类号
E21B3/02
代理机构
代理人
主权项
地址
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