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发明名称
Method and apparatus for bending ribbed sheet metal flashings
摘要
申请公布号
US2046608(A)
申请公布日期
1936.07.07
申请号
US19330684283
申请日期
1933.08.08
申请人
THE CHENEY COMPANY
发明人
CHENEY ALLAN
分类号
B21D5/04
主分类号
B21D5/04
代理机构
代理人
主权项
地址
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