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发明名称
Railway car truck
摘要
申请公布号
US1957833(A)
申请公布日期
1934.05.08
申请号
US19290365277
申请日期
1929.05.23
申请人
THE BETTENDORF COMPANY
发明人
HAMILTON KARL M.
分类号
B61F5/52
主分类号
B61F5/52
代理机构
代理人
主权项
地址
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