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发明名称
Motor actuated closure mechanism for railway hopper cars
摘要
申请公布号
US3316857(A)
申请公布日期
1967.05.02
申请号
US19640361459
申请日期
1964.04.21
申请人
UNITCAST CORPORATION
发明人
FLOEHR WALTER L.
分类号
B61D7/28
主分类号
B61D7/28
代理机构
代理人
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