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发明名称
An improved method of grinding hollow cylindrical articles
摘要
申请公布号
GB310921(A)
申请公布日期
1930.04.24
申请号
GB19290007131
申请日期
1929.03.05
申请人
BOHN ALUMINUM & BRASS CORPORATION
发明人
分类号
B24B19/10
主分类号
B24B19/10
代理机构
代理人
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