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发明名称
ARMOURED DIAMOND BIT
摘要
申请公布号
RO87842(B1)
申请公布日期
1985.12.01
申请号
RO19830111418
申请日期
1983.06.27
申请人
INTREPRINDEREA DE FORAJ SI LUCRARI GELOGICE SPECIALE
发明人
BANULEASA GHEORGHE;PINTOIU DANIELA;GEORGESCU STELIAN
分类号
E21B10/48
主分类号
E21B10/48
代理机构
代理人
主权项
地址
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