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经营范围
发明名称
Cleaning apparatus
摘要
申请公布号
US3055039(A)
申请公布日期
1962.09.25
申请号
US19590790523
申请日期
1959.02.02
申请人
发明人
分类号
A47L11/30
主分类号
A47L11/30
代理机构
代理人
主权项
地址
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