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发明名称
Improved method and apparatus for producing profiled sections from sheet metal by rolling
摘要
申请公布号
GB477581(A)
申请公布日期
1937.12.29
申请号
GB19360017994
申请日期
1936.06.29
申请人
METAL TRIM LIMITED;EMIL PENKALA
发明人
分类号
B21D5/08
主分类号
B21D5/08
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代理人
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