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发明名称
Poutre en treillis métallique
摘要
申请公布号
FR1033236(A)
申请公布日期
1953.07.09
申请号
FRD1033236
申请日期
1951.02.28
申请人
发明人
KELLER STEFAN
分类号
E04B5/26;E04C5/065
主分类号
E04B5/26
代理机构
代理人
主权项
地址
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