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发明名称
Pencil sharpener
摘要
申请公布号
US1790255(A)
申请公布日期
1931.01.27
申请号
US19280291669
申请日期
1928.07.10
申请人
ERNEST WILDHABER;JOSEPH GSTYR
发明人
WILDHABER ERNEST;GSTYR 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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