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发明名称
Knife sharpening mechanism
摘要
申请公布号
US2563921(A)
申请公布日期
1951.08.14
申请号
US19500183182
申请日期
1950.09.05
申请人
EASTMAN MACHINE COMPANY
发明人
CLARK FREDERICK G.
分类号
B24B3/36
主分类号
B24B3/36
代理机构
代理人
主权项
地址
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