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发明名称
Improvements in or relating to surface cleaning devices
摘要
申请公布号
GB329847(A)
申请公布日期
1930.05.29
申请号
GB19290016270
申请日期
1929.05.27
申请人
STUART AUSTIN WIER
发明人
分类号
A47L11/34
主分类号
A47L11/34
代理机构
代理人
主权项
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