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发明名称
Procédé de fabrication d'éléments pour échangeurs de chaleur, et produits en résultant
摘要
申请公布号
FR1012197(A)
申请公布日期
1952.07.07
申请号
FRD1012197
申请日期
1949.06.30
申请人
L'ECONOMISEUR GREEN
发明人
分类号
B21C37/24
主分类号
B21C37/24
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