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发明名称
Drop bottom mine cars
摘要
申请公布号
GB589140(A)
申请公布日期
1947.06.12
申请号
GB19440019392
申请日期
1944.10.09
申请人
THOMAS MINNIS CATE;ROBERT EDWARD JONES
发明人
分类号
B61D7/30
主分类号
B61D7/30
代理机构
代理人
主权项
地址
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