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发明名称
Built-up abrasive element
摘要
申请公布号
US1954655(A)
申请公布日期
1934.04.10
申请号
US19310568911
申请日期
1931.10.15
申请人
THE STRATMORE COMPANY
发明人
STRATFORD HERBERT R.
分类号
B24D18/00
主分类号
B24D18/00
代理机构
代理人
主权项
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