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经营范围
发明名称
Knife sharpener
摘要
申请公布号
US2841931(A)
申请公布日期
1958.07.08
申请号
US19570662943
申请日期
1957.05.31
申请人
HOLZHAUSEN GLEN H;HAEFLIGER WILLIAM W
发明人
HOLZHAUSEN GLEN H.;HAEFLIGER WILLIAM W.
分类号
B24B3/54
主分类号
B24B3/54
代理机构
代理人
主权项
地址
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