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发明名称
Electric pencil sharpener
摘要
申请公布号
US1783038(A)
申请公布日期
1930.11.25
申请号
US19300478078
申请日期
1930.08.27
申请人
GAWRON DAVID J
发明人
GAWRON DAVID J.
分类号
B43L23/00
主分类号
B43L23/00
代理机构
代理人
主权项
地址
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