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发明名称
BOX CAR DOOR
摘要
申请公布号
CA319849(A)
申请公布日期
1932.02.16
申请号
CAD319849
申请日期
申请人
THE NATIONAL MALLEABLE AND STEEL CASTINGS COMPANY
发明人
JAMES ANDREW SHAFER
分类号
主分类号
代理机构
代理人
主权项
地址
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