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发明名称
échangeur de chaleur
摘要
申请公布号
FR1499993(A)
申请公布日期
1967.11.03
申请号
FR19660062980
申请日期
1966.05.25
申请人
发明人
LEGRAND PIERRE
分类号
F22B37/20;F28D7/06;F28F1/36;F28F13/06
主分类号
F22B37/20
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代理人
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