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经营范围
发明名称
Automatic electrical humidifier
摘要
申请公布号
US1843865(A)
申请公布日期
1932.02.02
申请号
US19310507256
申请日期
1931.01.07
申请人
CAVAN CHARLES V
发明人
CAVAN CHARLES V.
分类号
F24D19/00
主分类号
F24D19/00
代理机构
代理人
主权项
地址
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