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发明名称
Vacuum cleaning machine
摘要
申请公布号
US1762142(A)
申请公布日期
1930.06.10
申请号
US19270161097
申请日期
1927.01.14
申请人
PAUL BRETON
发明人
BRETON PAUL
分类号
A47L11/30;G07B3/04
主分类号
A47L11/30
代理机构
代理人
主权项
地址
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