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经营范围
发明名称
Valve grinding machine
摘要
申请公布号
US2438994(A)
申请公布日期
1948.04.06
申请号
US19460638656
申请日期
1946.01.02
申请人
HECTOR DURAT
发明人
DURAT HECTOR
分类号
B24B15/08
主分类号
B24B15/08
代理机构
代理人
主权项
地址
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