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经营范围
发明名称
Nouvel élément échangeur thermique
摘要
申请公布号
FR929698(A)
申请公布日期
1948.01.05
申请号
FRD929698
申请日期
1946.06.24
申请人
发明人
HOUPLAIN MARCEL
分类号
F28D9/00
主分类号
F28D9/00
代理机构
代理人
主权项
地址
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