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发明名称
Floor-polishing machine
摘要
申请公布号
US1768137(A)
申请公布日期
1930.06.24
申请号
US19260154729
申请日期
1926.12.14
申请人
NEWCOMER ERNEST J
发明人
NEWCOMER ERNEST J.
分类号
A47L11/16
主分类号
A47L11/16
代理机构
代理人
主权项
地址
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