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发明名称
DROP END GONDOLA CARS
摘要
申请公布号
CA474707(A)
申请公布日期
1951.06.26
申请号
CAD474707
申请日期
申请人
ORVILLE INGRAM
发明人
ORVILLE INGRAM
分类号
主分类号
代理机构
代理人
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