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经营范围
发明名称
Cleaning device
摘要
申请公布号
US2070313(A)
申请公布日期
1937.02.09
申请号
US19340738641
申请日期
1934.08.06
申请人
PIEPER ARTHUR O
发明人
PIEPER ARTHUR O.
分类号
A47L13/17
主分类号
A47L13/17
代理机构
代理人
主权项
地址
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