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发明名称
Improvements in or relating to ventilating systems
摘要
申请公布号
GB702668(A)
申请公布日期
1954.01.20
申请号
GB19510000665
申请日期
1951.02.09
申请人
KARL MICHAELIS;JAMES WILLIAMS
发明人
分类号
F24F13/062;F24F13/078
主分类号
F24F13/062
代理机构
代理人
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