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发明名称
Système d'assemblage de tronçons de poteaux
摘要
申请公布号
FR689505(A)
申请公布日期
1930.09.08
申请号
FRD689505
申请日期
1930.02.06
申请人
发明人
BOULANGER ALBERT
分类号
E04H12/22
主分类号
E04H12/22
代理机构
代理人
主权项
地址
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