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经营范围
发明名称
Sweeper dust bag
摘要
申请公布号
US2203254(A)
申请公布日期
1940.06.04
申请号
US19390254435
申请日期
1939.02.03
申请人
CAMPBELL JOHN S
发明人
CAMPBELL JOHN S.
分类号
A47L9/14
主分类号
A47L9/14
代理机构
代理人
主权项
地址
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