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经营范围
发明名称
Heat exchanger
摘要
申请公布号
US2322284(A)
申请公布日期
1943.06.22
申请号
US19390310689
申请日期
1939.12.23
申请人
THE GRISCOM-RUSSELL COMPANY
发明人
DEWALD EDWARD A.
分类号
F28D7/12
主分类号
F28D7/12
代理机构
代理人
主权项
地址
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