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经营范围
发明名称
Grinding head or attachment
摘要
申请公布号
US1825883(A)
申请公布日期
1931.10.06
申请号
US19290407823
申请日期
1929.11.18
申请人
MOORE FRANK R
发明人
MOORE FRANK R.
分类号
B24B23/06
主分类号
B24B23/06
代理机构
代理人
主权项
地址
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