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发明名称
Metal fabrication
摘要
申请公布号
US3156040(A)
申请公布日期
1964.11.10
申请号
US19600068018
申请日期
1960.11.08
申请人
BELL AEROSPACE CORPORATION
发明人
DREXHAGE MARTIN G.
分类号
B21F45/00;C22C47/16;C23C4/18
主分类号
B21F45/00
代理机构
代理人
主权项
地址
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