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发明名称
Кольцевое сверло
摘要
申请公布号
SU111034(A1)
申请公布日期
1957.11.30
申请号
SU19570565208
申请日期
1957.01.15
申请人
TROITSKIJ N.D.
发明人
TROITSKIJ N.D.
分类号
B23B51/04
主分类号
B23B51/04
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