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经营范围
发明名称
Uncoupling mechanism for railway cars
摘要
申请公布号
US2051361(A)
申请公布日期
1936.08.18
申请号
US19310541150
申请日期
1931.06.01
申请人
NATIONAL MALLEABLE & STEEL CASTINGS COMPANY
发明人
BAZELEY ARTHUR J.
分类号
B61G3/08
主分类号
B61G3/08
代理机构
代理人
主权项
地址
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