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发明名称
Sheet metal assembly tool and method
摘要
申请公布号
US3225432(A)
申请公布日期
1965.12.28
申请号
US19630255368
申请日期
1963.01.31
申请人
WIDMAN ERWIN R
发明人
WIDMAN ERWIN R.
分类号
B21D39/02
主分类号
B21D39/02
代理机构
代理人
主权项
地址
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