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发明名称
Air-cooling apparatus
摘要
申请公布号
US1750047(A)
申请公布日期
1930.03.11
申请号
US19280281840
申请日期
1928.05.31
申请人
METZGER GUSTAVE A
发明人
METZGER GUSTAVE A.
分类号
F24F6/04
主分类号
F24F6/04
代理机构
代理人
主权项
地址
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