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经营范围
发明名称
Blade sharpener
摘要
申请公布号
US1916019(A)
申请公布日期
1933.06.27
申请号
US19300496291
申请日期
1930.11.17
申请人
NATHAN SCHWARTZ
发明人
SCHWARTZ NATHAN
分类号
B24D15/08
主分类号
B24D15/08
代理机构
代理人
主权项
地址
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