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经营范围
发明名称
Knife sharpening device
摘要
申请公布号
US1968472(A)
申请公布日期
1934.07.31
申请号
US19330656125
申请日期
1933.02.10
申请人
JOSEPH WHITE
发明人
WHITE JOSEPH
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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