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发明名称
Perfectionnements au tablier des ouvrages provisoires tels que les ponts démontables
摘要
申请公布号
FR1032415(A)
申请公布日期
1953.07.01
申请号
FRD1032415
申请日期
1931.02.13
申请人
ANCIENS ETABLISSEMENTS EIFFEL
发明人
分类号
E01D15/133
主分类号
E01D15/133
代理机构
代理人
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地址
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