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发明名称
HOPPER CAR DOOR
摘要
申请公布号
CA347535(A)
申请公布日期
1935.01.15
申请号
CAD347535
申请日期
申请人
THE ENTERPRISE RAILWAY EQUIPMENT COMPANY
发明人
ARGYLE CAMPBELL
分类号
主分类号
代理机构
代理人
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