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发明名称
Perfectionnements apportés aux procédés de construction de ponts ou ponceaux
摘要
申请公布号
FR1030983(A)
申请公布日期
1953.06.18
申请号
FRD1030983
申请日期
1951.01.13
申请人
SOCIETE D'EXPLOITATION DES BREVETS PAINDAVOINE FRERES
发明人
分类号
E01D2/00
主分类号
E01D2/00
代理机构
代理人
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地址
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