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经营范围
发明名称
Pencil sharpener
摘要
申请公布号
US1940966(A)
申请公布日期
1933.12.26
申请号
US19320619239
申请日期
1932.06.25
申请人
SPENGLER LOOMIS MANUFACTURING CO.
发明人
NESS JOSEPH
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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