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发明名称
échangeur de chaleur
摘要
申请公布号
FR1048538(A)
申请公布日期
1953.12.22
申请号
FRD1048538
申请日期
1951.10.01
申请人
发明人
GOBEL GERHARD
分类号
F28F1/12
主分类号
F28F1/12
代理机构
代理人
主权项
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