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发明名称
Способ и станок для получения путем шлифования отверстий меньшего диаметра по краям, чем посередине
摘要
申请公布号
SU49919(A1)
申请公布日期
1936.08.31
申请号
SU19360189662
申请日期
1936.03.19
申请人
TRUSNOV V.S.
发明人
TRUSNOV V.S.
分类号
B24B5/26
主分类号
B24B5/26
代理机构
代理人
主权项
地址
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