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经营范围
发明名称
Air conditioner
摘要
申请公布号
US2019575(A)
申请公布日期
1935.11.05
申请号
US19310567938
申请日期
1931.10.09
申请人
LANGFORD GEORGE W
发明人
LANGFORD GEORGE W.
分类号
F24F6/12
主分类号
F24F6/12
代理机构
代理人
主权项
地址
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