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发明名称
Apparatus for truing valve seats
摘要
申请公布号
US1747060(A)
申请公布日期
1930.02.11
申请号
US19290364178
申请日期
1929.05.18
申请人
CEDAR RAPIDS ENGINEERING COMPANY
发明人
DUNN ALLEN I.
分类号
B23C3/05
主分类号
B23C3/05
代理机构
代理人
主权项
地址
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