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经营范围
发明名称
Heat exchanger
摘要
申请公布号
US1852489(A)
申请公布日期
1932.04.05
申请号
US19310516487
申请日期
1931.02.17
申请人
JOSEPH S. BELT
发明人
SULLIVAN EDWARD G.
分类号
F28D7/02
主分类号
F28D7/02
代理机构
代理人
主权项
地址
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