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经营范围
发明名称
Sheet metal shaping and shearing
摘要
申请公布号
US2377664(A)
申请公布日期
1945.06.05
申请号
US19410423754
申请日期
1941.12.20
申请人
ARMSTRONG CORK COMPANY
发明人
BERGER JOHN L.
分类号
B21D22/10
主分类号
B21D22/10
代理机构
代理人
主权项
地址
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