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发明名称
Продольный слип
摘要
申请公布号
SU58935(A1)
申请公布日期
1940.11.30
申请号
SU19390001899
申请日期
1939.05.04
申请人
ZINEVICH D.I.
发明人
ZINEVICH D.I.
分类号
E02C3/00
主分类号
E02C3/00
代理机构
代理人
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