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发明名称
Knife sharpener
摘要
申请公布号
US1810727(A)
申请公布日期
1931.06.16
申请号
US19270181083
申请日期
1927.04.05
申请人
POLSON WILLIAM F
发明人
POLSON WILLIAM F.
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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