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发明名称
Electrical vacuum cleaner
摘要
申请公布号
GB341509(A)
申请公布日期
1931.01.14
申请号
GB19290031119
申请日期
1929.10.14
申请人
ARTHUR TOWNSEND
发明人
分类号
A47L5/32;A47L9/22
主分类号
A47L5/32
代理机构
代理人
主权项
地址
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