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发明名称
Cutting tool
摘要
申请公布号
US2212886(A)
申请公布日期
1940.08.27
申请号
US19380216896
申请日期
1938.07.01
申请人
RULAND FRED F
发明人
RULAND FRED F.
分类号
B21D28/34
主分类号
B21D28/34
代理机构
代理人
主权项
地址
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