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发明名称
Abrading tool
摘要
申请公布号
US1874856(A)
申请公布日期
1932.08.30
申请号
US19300440131
申请日期
1930.03.29
申请人
BEARD LAWRENCE O
发明人
BEARD LAWRENCE O.
分类号
B24B33/08
主分类号
B24B33/08
代理机构
代理人
主权项
地址
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