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发明名称
Portable electric saw sharpener
摘要
申请公布号
US2600850(A)
申请公布日期
1952.06.17
申请号
US19490074959
申请日期
1949.02.07
申请人
MELVIN COLLIS
发明人
COLLIS MELVIN
分类号
B23D63/12
主分类号
B23D63/12
代理机构
代理人
主权项
地址
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