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发明名称
VENTILATING DEVICES
摘要
申请公布号
IE18853(L)
申请公布日期
1949.06.12
申请号
IE19480000775
申请日期
1948.12.10
申请人
THOMAS CHARLES FITT
发明人
分类号
(IPC1-7):F24F/00
主分类号
(IPC1-7):F24F/00
代理机构
代理人
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