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经营范围
发明名称
Saw grinder
摘要
申请公布号
US2470290(A)
申请公布日期
1949.05.17
申请号
US19470746299
申请日期
1947.05.06
申请人
CHRYST JOHN R
发明人
CHRYST JOHN R.
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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