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发明名称
échangeur de chaleur perfectionné
摘要
申请公布号
FR50468(E)
申请公布日期
1940.11.14
申请号
FRD50468
申请日期
1939.03.10
申请人
STEIN ET ROUBAIX, SOCIETE ANONYME
发明人
分类号
F28F1/20
主分类号
F28F1/20
代理机构
代理人
主权项
地址
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