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发明名称
Improvements in or relating to collapsible bridges
摘要
申请公布号
GB534913(A)
申请公布日期
1941.03.21
申请号
GB19390031132
申请日期
1939.11.30
申请人
NICHOLAS STRAUSSLER
发明人
分类号
E01D15/12
主分类号
E01D15/12
代理机构
代理人
主权项
地址
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