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发明名称
Valve stem grinding fixture
摘要
申请公布号
US2182191(A)
申请公布日期
1939.12.05
申请号
US19370138134
申请日期
1937.04.21
申请人
ALBERTSON & COMPANY, INC.
发明人
ALBERTSON FRANS O.
分类号
B24B7/16
主分类号
B24B7/16
代理机构
代理人
主权项
地址
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