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发明名称
Method of making cutting blades
摘要
申请公布号
US2168406(A)
申请公布日期
1939.08.08
申请号
US19370156720
申请日期
1937.07.31
申请人
HARRIS ARTIE B
发明人
HARRIS ARTIE B.
分类号
B21D53/64;B26B19/04
主分类号
B21D53/64
代理机构
代理人
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