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经营范围
发明名称
Lapping machine
摘要
申请公布号
US2241351(A)
申请公布日期
1941.05.06
申请号
US19400329592
申请日期
1940.04.15
申请人
NORTON COMPANY
发明人
INDGE HERBERT S.;JOHNSON FRANKLIN E.
分类号
B24B37/02
主分类号
B24B37/02
代理机构
代理人
主权项
地址
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