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经营范围
发明名称
Vacuum cleaning water separator
摘要
申请公布号
US2649927(A)
申请公布日期
1953.08.25
申请号
US19500173292
申请日期
1950.07.12
申请人
发明人
分类号
A47L7/00;A47L9/00
主分类号
A47L7/00
代理机构
代理人
主权项
地址
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