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经营范围
发明名称
échangeur thermique perfectionné
摘要
申请公布号
FR770605(A)
申请公布日期
1934.09.17
申请号
FRD770605
申请日期
1934.03.23
申请人
发明人
FERLAY
分类号
F28D1/047
主分类号
F28D1/047
代理机构
代理人
主权项
地址
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