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发明名称
Ouvrages en béton armé sur arcs ou fermes sous-tendus et leur procédé de construction
摘要
申请公布号
FR921859(A)
申请公布日期
1947.05.21
申请号
FRD921859
申请日期
1945.12.06
申请人
SECHAUD & METZ
发明人
分类号
E01D1/00
主分类号
E01D1/00
代理机构
代理人
主权项
地址
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