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发明名称
Lapping machine
摘要
申请公布号
US2230921(A)
申请公布日期
1941.02.04
申请号
US19400353027
申请日期
1940.08.17
申请人
NORTON COMPANY
发明人
WOOD WALLACE H.
分类号
B24B5/42;B24B35/00
主分类号
B24B5/42
代理机构
代理人
主权项
地址
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