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经营范围
发明名称
Air cleaner and humidifier
摘要
申请公布号
US2522805(A)
申请公布日期
1950.09.19
申请号
US19490112873
申请日期
1949.08.29
申请人
SMART GLENN J
发明人
SMART GLENN J.
分类号
F02M35/04
主分类号
F02M35/04
代理机构
代理人
主权项
地址
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