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发明名称
Method of making gear finishing tools
摘要
申请公布号
US3247301(A)
申请公布日期
1966.04.19
申请号
US19620224020
申请日期
1962.09.17
申请人
NATIONAL BROACH & MACHINE COMPANY
发明人
PRAEG WALTER S.;JR. JOHN J. SIGMAN,
分类号
B23F21/03
主分类号
B23F21/03
代理机构
代理人
主权项
地址
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