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发明名称
Double deck freight car
摘要
申请公布号
US2147014(A)
申请公布日期
1939.02.14
申请号
US19370182067
申请日期
1937.12.28
申请人
THE PENNSYLVANIA RAILROAD COMPANY
发明人
DEMAREST THOMAS W.
分类号
B60P3/073
主分类号
B60P3/073
代理机构
代理人
主权项
地址
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