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经营范围
发明名称
Air circulation control system
摘要
申请公布号
US2474369(A)
申请公布日期
1949.06.28
申请号
US19440550160
申请日期
1944.08.19
申请人
GENERAL CONTROLS CO.
发明人
RAY WILLIAM A.
分类号
F24F11/053
主分类号
F24F11/053
代理机构
代理人
主权项
地址
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