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发明名称
Sharpener
摘要
申请公布号
US3092081(A)
申请公布日期
1963.06.04
申请号
US19620171515
申请日期
1962.02.06
申请人
FRASER GEORGE R
发明人
FRASER GEORGE R.
分类号
B43L23/00
主分类号
B43L23/00
代理机构
代理人
主权项
地址
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