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经营范围
发明名称
Noiseless vacuum cleaner
摘要
申请公布号
US2378347(A)
申请公布日期
1945.06.12
申请号
US19440521858
申请日期
1944.02.10
申请人
BARTON WILLIAMS LEE
发明人
WILLIAMS LEE BARTON
分类号
A47L5/04
主分类号
A47L5/04
代理机构
代理人
主权项
地址
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