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发明名称
Traverse métallique
摘要
申请公布号
FR686993(A)
申请公布日期
1930.08.01
申请号
FRD686993
申请日期
1929.12.20
申请人
发明人
YSEBOODT GUSTAVE
分类号
E01B9/32
主分类号
E01B9/32
代理机构
代理人
主权项
地址
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