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发明名称
Шарошечное долото
摘要
申请公布号
SU83754(A1)
申请公布日期
1949.11.30
申请号
SU19490400924
申请日期
1949.07.20
申请人
KONDAKOV A.N.
发明人
KONDAKOV A.N.
分类号
E21B10/08
主分类号
E21B10/08
代理机构
代理人
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地址
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