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发明名称
Improvements in or relating to composite insulating material
摘要
申请公布号
GB317363(A)
申请公布日期
1930.04.24
申请号
GB19290006038
申请日期
1929.02.23
申请人
THE UPSON COMPANY
发明人
分类号
E04C2/18;H01B3/48
主分类号
E04C2/18
代理机构
代理人
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