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发明名称
Безударный железнодорожный стык
摘要
申请公布号
SU70529(A1)
申请公布日期
1947.11.30
申请号
SU19460005723
申请日期
1946.12.27
申请人
TOPCHIJ Z.R.
发明人
TOPCHIJ Z.R.
分类号
E01B11/20;F16B7/04
主分类号
E01B11/20
代理机构
代理人
主权项
地址
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