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发明名称
Method of and tool for applying bail ears to sheet metal
摘要
申请公布号
US1865144(A)
申请公布日期
1932.06.28
申请号
US19300425122
申请日期
1930.02.01
申请人
ARTHUR H. PARKER
发明人
SEBELL HARRY
分类号
B21F45/00
主分类号
B21F45/00
代理机构
代理人
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地址
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