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发明名称
Шарошечное долото
摘要
申请公布号
SU84872(A1)
申请公布日期
1949.11.30
申请号
SU19490403851
申请日期
1949.09.06
申请人
KISELEV D.K.
发明人
KISELEV D.K.
分类号
E21B10/16
主分类号
E21B10/16
代理机构
代理人
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地址
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