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发明名称
Railway center plate structure
摘要
申请公布号
US2258640(A)
申请公布日期
1941.10.14
申请号
US19380241883
申请日期
1938.11.23
申请人
GENERAL STEEL CASTINGS CORPORATION
发明人
BECKETTE EDMUND S.
分类号
B61F5/16
主分类号
B61F5/16
代理机构
代理人
主权项
地址
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