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发明名称
Improvements relating to the shaping and forming of sheet metal for building purposes
摘要
申请公布号
GB609696(A)
申请公布日期
1948.10.05
申请号
GB19460008722
申请日期
1946.03.21
申请人
RUPERT CLARENCE SYMONS
发明人
分类号
B21D5/08
主分类号
B21D5/08
代理机构
代理人
主权项
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