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发明名称
Pencil sharpener
摘要
申请公布号
US2626593(A)
申请公布日期
1953.01.27
申请号
US19510229357
申请日期
1951.06.01
申请人
GWIN JR ROBERT C
发明人
JR. ROBERT C. GWIN,
分类号
B43L23/08
主分类号
B43L23/08
代理机构
代理人
主权项
地址
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