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发明名称
Improved tube unit for heat exchangers
摘要
申请公布号
GB1120199(A)
申请公布日期
1968.07.17
申请号
GB19660013371
申请日期
1966.03.25
申请人
HEINRICH VORKAUF
发明人
分类号
F28D7/00;F28D7/06;F28D7/08
主分类号
F28D7/00
代理机构
代理人
主权项
地址
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