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发明名称
Grinding wheel
摘要
申请公布号
US2488276(A)
申请公布日期
1949.11.15
申请号
US19430515907
申请日期
1943.12.28
申请人
NORTON COMPANY
发明人
ERICKSON JOHN R.
分类号
B24D7/02
主分类号
B24D7/02
代理机构
代理人
主权项
地址
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