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发明名称
Adjustable louver type ventilator
摘要
申请公布号
US2675072(A)
申请公布日期
1954.04.13
申请号
US19500173182
申请日期
1950.07.11
申请人
SMITH LESTER L
发明人
SMITH LESTER L.
分类号
F24F13/08
主分类号
F24F13/08
代理机构
代理人
主权项
地址
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