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经营范围
发明名称
Chain saw sharpener
摘要
申请公布号
US2522799(A)
申请公布日期
1950.09.19
申请号
US19490099197
申请日期
1949.06.15
申请人
PITCHER BENJAMIN F
发明人
PITCHER BENJAMIN F.
分类号
B23D63/16
主分类号
B23D63/16
代理机构
代理人
主权项
地址
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