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经营范围
发明名称
Cleaning implement
摘要
申请公布号
US2531304(A)
申请公布日期
1950.11.21
申请号
US19450623922
申请日期
1945.10.23
申请人
LOUIS SEEWALD
发明人
SEEWALD LOUIS
分类号
A47L13/46
主分类号
A47L13/46
代理机构
代理人
主权项
地址
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