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发明名称
Sharpening device
摘要
申请公布号
US1747827(A)
申请公布日期
1930.02.18
申请号
US19270184462
申请日期
1927.04.18
申请人
GAETANO GRECO
发明人
GRECO GAETANO
分类号
B24D15/08
主分类号
B24D15/08
代理机构
代理人
主权项
地址
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