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经营范围
发明名称
Rocker arm refacer
摘要
申请公布号
US2643489(A)
申请公布日期
1953.06.30
申请号
US19510251277
申请日期
1951.10.15
申请人
HELM VERNON L
发明人
HELM VERNON L.
分类号
B24B19/26
主分类号
B24B19/26
代理机构
代理人
主权项
地址
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