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经营范围
发明名称
Dispositif d'étai réglable
摘要
申请公布号
FR1140137(A)
申请公布日期
1957.07.11
申请号
FRD1140137
申请日期
1956.01.09
申请人
发明人
DESORBAY LOUIS
分类号
E21D15/34
主分类号
E21D15/34
代理机构
代理人
主权项
地址
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