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发明名称
Valve burnishing tool
摘要
申请公布号
US1829373(A)
申请公布日期
1931.10.27
申请号
US19290367273
申请日期
1929.05.31
申请人
SAMSON FRANK N
发明人
SAMSON FRANK N.
分类号
B24B39/02
主分类号
B24B39/02
代理机构
代理人
主权项
地址
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