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发明名称
Improvements in vacuum cleaners
摘要
申请公布号
GB342580(A)
申请公布日期
1931.02.05
申请号
GB19300008150
申请日期
1930.03.13
申请人
ELEKTRISKA AKTIEBOLAGET VOLTA
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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