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发明名称
Ventilating apparatus
摘要
申请公布号
US2060764(A)
申请公布日期
1936.11.10
申请号
US19320621865
申请日期
1932.07.11
申请人
CAMPBELL METAL WINDOW CORPORATION
发明人
SARGENT ALLSTON
分类号
F24F1/00
主分类号
F24F1/00
代理机构
代理人
主权项
地址
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