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发明名称
Means for machining rectangular apertures
摘要
申请公布号
US2420140(A)
申请公布日期
1947.05.06
申请号
US19430499971
申请日期
1943.08.25
申请人
MICROMATIC HONE CORPORATION
发明人
KLINE JOHN E.
分类号
B24D99/00
主分类号
B24D99/00
代理机构
代理人
主权项
地址
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