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发明名称
Hopper car construction
摘要
申请公布号
US1912619(A)
申请公布日期
1933.06.06
申请号
US19310551159
申请日期
1931.07.16
申请人
ENTERPRISE RAILWAY EQUIPMENT COMPANY
发明人
CAMPBELL ARGYLE
分类号
B61D7/02
主分类号
B61D7/02
代理机构
代理人
主权项
地址
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