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发明名称
Lapping device
摘要
申请公布号
US2141491(A)
申请公布日期
1938.12.27
申请号
US19370157648
申请日期
1937.08.06
申请人
THE FAFNIR BEARING COMPANY
发明人
SEARLES RAYMOND R.
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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