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发明名称
Способ изготовления предварительно напряженных железобетонных сквозных ферм
摘要
申请公布号
SU83842(A1)
申请公布日期
1949.11.30
申请号
SU19490393565
申请日期
1949.03.16
申请人
GNEDOVSKIJ V.I.
发明人
GNEDOVSKIJ V.I.
分类号
E04G21/12;E04C3/20;F16G11/00
主分类号
E04G21/12
代理机构
代理人
主权项
地址
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