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发明名称
Bridging structures
摘要
申请公布号
US3003167(A)
申请公布日期
1961.10.10
申请号
US19580770787
申请日期
1958.10.30
申请人
DODGE STEEL COMPANY
发明人
SMITH MARION F.
分类号
B61D3/18
主分类号
B61D3/18
代理机构
代理人
主权项
地址
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