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经营范围
发明名称
Perfectionnements aux procédés de construction de conduits, gaines et analogues
摘要
申请公布号
FR1261988(A)
申请公布日期
1961.05.26
申请号
FR19606940356
申请日期
1960.04.14
申请人
发明人
PERDRIOLLE ANDRE
分类号
E04F21/14;F23J11/00;F24F13/02
主分类号
E04F21/14
代理机构
代理人
主权项
地址
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