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发明名称
Improvements in or relating to filters for vacuum cleaners
摘要
申请公布号
GB394615(A)
申请公布日期
1933.06.29
申请号
GB19330004351
申请日期
1933.02.13
申请人
ELECTROLUX LIMITED
发明人
分类号
A47L5/36;A47L9/12
主分类号
A47L5/36
代理机构
代理人
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