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发明名称
Railway hopper car
摘要
申请公布号
US1754135(A)
申请公布日期
1930.04.08
申请号
US19290335051
申请日期
1929.01.25
申请人
WINE WILLIAM E
发明人
WINE WILLIAM E.
分类号
B61D7/16
主分类号
B61D7/16
代理机构
代理人
主权项
地址
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