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发明名称
élément préfabriqué en béton armé
摘要
申请公布号
FR1106740(A)
申请公布日期
1955.12.22
申请号
FRD1106740
申请日期
1954.05.28
申请人
发明人
TANCHON LOUIS;WASSON YVES
分类号
E01F7/04
主分类号
E01F7/04
代理机构
代理人
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