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发明名称
DEVICE TO FACILITATE THE OPENING OF FREIGHT CAR DOORS
摘要
申请公布号
CA494514(A)
申请公布日期
1953.07.21
申请号
CAD494514
申请日期
申请人
CLARENCE C. FERGUSON
发明人
CLARENCE C. FERGUSON
分类号
主分类号
代理机构
代理人
主权项
地址
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