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发明名称
Polishing machine
摘要
申请公布号
US2187463(A)
申请公布日期
1940.01.16
申请号
US19380202979
申请日期
1938.04.19
申请人
MULHOLLAND DAVID E
发明人
MULHOLLAND DAVID E.
分类号
B24B7/12
主分类号
B24B7/12
代理机构
代理人
主权项
地址
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