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经营范围
发明名称
Ventilating apparatus
摘要
申请公布号
US2154410(A)
申请公布日期
1939.04.11
申请号
US19360075930
申请日期
1936.04.23
申请人
AMERICAN BLOWER CORPORATION
发明人
POLK GILBERT C.
分类号
F24F7/06
主分类号
F24F7/06
代理机构
代理人
主权项
地址
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