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发明名称
Improvements in and relating to vacuum cleaners
摘要
申请公布号
GB557683(A)
申请公布日期
1943.11.30
申请号
GB19420017992
申请日期
1942.12.18
申请人
THE BRITISH THOMSON-HOUSTON COMPANY LIMITED
发明人
分类号
A47L5/36
主分类号
A47L5/36
代理机构
代理人
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地址
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