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经营范围
发明名称
Tube à ailettes creuses renforcées
摘要
申请公布号
FR1161843(A)
申请公布日期
1958.09.04
申请号
FRD1161843
申请日期
1956.11.26
申请人
发明人
HUET ANDRE
分类号
B21D15/02;F16L9/00;F16L9/02;F22B37/10;F22D1/02
主分类号
B21D15/02
代理机构
代理人
主权项
地址
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