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经营范围
发明名称
HEAT EXCHANGER
摘要
申请公布号
PL138412(B2)
申请公布日期
1986.09.30
申请号
PL19850251875
申请日期
1985.02.06
申请人
发明人
分类号
F28D;F28F9/22;(IPC1-7):F28F9/22
主分类号
F28D
代理机构
代理人
主权项
地址
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