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经营范围
发明名称
Grinding machine
摘要
申请公布号
US2229374(A)
申请公布日期
1941.01.21
申请号
US19390254307
申请日期
1939.02.02
申请人
DEVAU JOSEPH O
发明人
DEVAU JOSEPH O.
分类号
B24B3/00
主分类号
B24B3/00
代理机构
代理人
主权项
地址
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