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经营范围
发明名称
Knife sharpener
摘要
申请公布号
US2477860(A)
申请公布日期
1949.08.02
申请号
US19450607324
申请日期
1945.07.27
申请人
CHESTER FRANK R
发明人
CHESTER FRANK R.
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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