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发明名称
Method of making nuts
摘要
申请公布号
US2542023(A)
申请公布日期
1951.02.20
申请号
US19440547849
申请日期
1944.08.03
申请人
THE NATIONAL MACHINERY COMPANY
发明人
FRIEDMAN JOHN H.
分类号
B21K1/64
主分类号
B21K1/64
代理机构
代理人
主权项
地址
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