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发明名称
BLADE SHARPENER
摘要
A hand-operated blade sharpener providing engagements of a blade by an abrasive stone at pre-selected angles to the blade is disclosed.
申请公布号
US2007249268(A1)
申请公布日期
2007.10.25
申请号
US20070738450
申请日期
2007.04.20
申请人
SWARTZ RONALD
发明人
SWARTZ RONALD
分类号
B24B23/00
主分类号
B24B23/00
代理机构
代理人
主权项
地址
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