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发明名称
Bridge
摘要
申请公布号
US2330981(A)
申请公布日期
1943.10.05
申请号
US19400322064
申请日期
1940.03.04
申请人
THOMAS MADDOCK
发明人
MADDOCK THOMAS
分类号
E01D11/02
主分类号
E01D11/02
代理机构
代理人
主权项
地址
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