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发明名称
Barge shifter
摘要
申请公布号
US2071168(A)
申请公布日期
1937.02.16
申请号
US19340727431
申请日期
1934.05.25
申请人
THE DRAVO CONTRACTING COMPANY
发明人
KERSTING BERNARD H.
分类号
E02C1/10
主分类号
E02C1/10
代理机构
代理人
主权项
地址
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