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经营范围
发明名称
Procédé de fabrication de tubes à ailettes et ses applications
摘要
申请公布号
FR826416(A)
申请公布日期
1938.03.31
申请号
FRD826416
申请日期
1937.09.07
申请人
ETABLISSEMENTS BARBERIS & NEVEUX S. A.
发明人
分类号
B21C37/24
主分类号
B21C37/24
代理机构
代理人
主权项
地址
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