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经营范围
发明名称
Hopper car evacuator
摘要
申请公布号
US2673651(A)
申请公布日期
1954.03.30
申请号
US19500171107
申请日期
1950.06.29
申请人
PLANT LELAND G
发明人
PLANT LELAND G.
分类号
B61D7/30;B61D7/32
主分类号
B61D7/30
代理机构
代理人
主权项
地址
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