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发明名称
Долото-желонка для ударного бурения
摘要
申请公布号
SU99625(A1)
申请公布日期
1954.11.30
申请号
SU19540448964
申请日期
1954.02.17
申请人
ANISIMOV K.A.;ANISIMOV F.A.
发明人
ANISIMOV K.A.;ANISIMOV F.A.
分类号
E21B27/00
主分类号
E21B27/00
代理机构
代理人
主权项
地址
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