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发明名称
Ventilator
摘要
申请公布号
US1931156(A)
申请公布日期
1933.10.17
申请号
US19310520524
申请日期
1931.03.06
申请人
THE EMERSON ELECTRIC MFG. CO.
发明人
PERSONS LAWRENCE M.
分类号
F24F7/013
主分类号
F24F7/013
代理机构
代理人
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地址
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