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经营范围
发明名称
Sharpener
摘要
申请公布号
US2032640(A)
申请公布日期
1936.03.03
申请号
US19340746459
申请日期
1934.10.01
申请人
SWETTA JOHN R;LEHOTSKY WILLIAM E
发明人
SWETTA JOHN R.;LEHOTSKY WILLIAM E.
分类号
B24D15/06
主分类号
B24D15/06
代理机构
代理人
主权项
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