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发明名称
PERMUTADOR DE CALOR
摘要
申请公布号
BR7700924(A)
申请公布日期
1977.10.18
申请号
BR19770000924
申请日期
1977.02.15
申请人
AIR PREHEATER CO INC
发明人
STOCKMAN R
分类号
F28D19/04;F02C7/105;F28F27/00;(IPC1-7):F28D19/00
主分类号
F28D19/04
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代理人
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