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经营范围
发明名称
Improvements in or relating to bridge constructions
摘要
申请公布号
GB362125(A)
申请公布日期
1931.12.03
申请号
GB19300033946
申请日期
1930.11.11
申请人
ERNEST MARTIN WICHERT
发明人
分类号
E01D6/00
主分类号
E01D6/00
代理机构
代理人
主权项
地址
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