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经营范围
发明名称
Heat exchanger
摘要
申请公布号
US3171478(A)
申请公布日期
1965.03.02
申请号
US19600077774
申请日期
1960.12.22
申请人
WELKS JOHN E
发明人
WELKS JOHN E.
分类号
F28F9/26
主分类号
F28F9/26
代理机构
代理人
主权项
地址
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