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经营范围
发明名称
Pencil sharpener
摘要
申请公布号
US2818834(A)
申请公布日期
1958.01.07
申请号
US19540475871
申请日期
1954.12.17
申请人
C. HOWARD HUNT PEN CO.
发明人
KEECH HORACE;LEHR DONALD H.
分类号
B43L23/04
主分类号
B43L23/04
代理机构
代理人
主权项
地址
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