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发明名称
Railway car truck construction
摘要
申请公布号
US2669944(A)
申请公布日期
1954.02.23
申请号
US19500199441
申请日期
1950.12.06
申请人
SCULLIN STEEL CO.
发明人
SPENNER FRED H.
分类号
B61F5/12
主分类号
B61F5/12
代理机构
代理人
主权项
地址
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