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经营范围
发明名称
Pencil tip and sharpener
摘要
申请公布号
US2269304(A)
申请公布日期
1942.01.06
申请号
US19400312208
申请日期
1940.01.03
申请人
BAMBACH FRANK J
发明人
BAMBACH FRANK J.
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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