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发明名称
Barre en béton armé précontraint pour armature de constructions en béton
摘要
申请公布号
FR1041958(A)
申请公布日期
1953.10.28
申请号
FRD1041958
申请日期
1951.09.06
申请人
发明人
GESSNER MAX
分类号
E04C5/07
主分类号
E04C5/07
代理机构
代理人
主权项
地址
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