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发明名称
Ventilator
摘要
申请公布号
US1845954(A)
申请公布日期
1932.02.16
申请号
US19290399660
申请日期
1929.10.14
申请人
BIRD DAVID B
发明人
BIRD DAVID B.
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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