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发明名称
Combination punch for nonmetallic washers
摘要
申请公布号
US2275525(A)
申请公布日期
1942.03.10
申请号
US19400362096
申请日期
1940.10.21
申请人
HALMRAST CARL L
发明人
HALMRAST CARL L.
分类号
B26F1/02;B26F1/38
主分类号
B26F1/02
代理机构
代理人
主权项
地址
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