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发明名称
Improvements relating to bar-like elements for structural and other purposes
摘要
申请公布号
GB923452(A)
申请公布日期
1963.04.10
申请号
GB19580032678
申请日期
1958.10.14
申请人
AUSTEN ROBERT HIGGIN
发明人
分类号
B21D47/04;B62D25/20;E04C3/04;E04C3/09
主分类号
B21D47/04
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代理人
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