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发明名称
Twist drill grinding fixture
摘要
申请公布号
US2486335(A)
申请公布日期
1949.10.25
申请号
US19460641088
申请日期
1946.01.14
申请人
SMITH
发明人
SMITH NEIL C.;JOHNSON WALLACE E.
分类号
B24B3/24
主分类号
B24B3/24
代理机构
代理人
主权项
地址
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