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经营范围
发明名称
Air changer
摘要
申请公布号
US2483377(A)
申请公布日期
1949.09.27
申请号
US19470721924
申请日期
1947.01.14
申请人
THE EAGLE-PICHER COMPANY
发明人
YOUNG CHARLES E.
分类号
F24F7/007
主分类号
F24F7/007
代理机构
代理人
主权项
地址
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