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发明名称
Способ уменьшения чувствительности к надрезу и улучшения обрабатываемости резанием в наиболее напряженных участках стальных конструкций
摘要
申请公布号
SU77690(A1)
申请公布日期
1949.11.30
申请号
SU19490396318
申请日期
1949.04.28
申请人
BENDRYSHEV O.L.;FRIDMAN YA.B.
发明人
BENDRYSHEV O.L.;FRIDMAN YA.B.
分类号
C21D1/78
主分类号
C21D1/78
代理机构
代理人
主权项
地址
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