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经营范围
发明名称
A tool for use in grinding-in valves
摘要
申请公布号
GB331574(A)
申请公布日期
1930.07.04
申请号
GB19290010512
申请日期
1929.04.04
申请人
VICTOR MARTIN
发明人
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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