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发明名称
Железнодорожный путь
摘要
申请公布号
SU71308(A1)
申请公布日期
1947.11.30
申请号
SU19470005802
申请日期
1947.02.12
申请人
ZVEREV B.N.
发明人
ZVEREV B.N.
分类号
E01B2/00;E01B9/38;E01B9/44
主分类号
E01B2/00
代理机构
代理人
主权项
地址
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