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发明名称
Bridge structure
摘要
申请公布号
US2417825(A)
申请公布日期
1947.03.25
申请号
US19440562773
申请日期
1944.11.10
申请人
JANKE SR EDWARD F
发明人
SR. EDWARD F. JANKE,
分类号
E01D15/133
主分类号
E01D15/133
代理机构
代理人
主权项
地址
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