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发明名称
Railway car truck
摘要
申请公布号
US2476660(A)
申请公布日期
1949.07.19
申请号
US19450637626
申请日期
1945.12.28
申请人
UNITED STATES STEEL CORPORATION OF DELAWARE
发明人
HAMMERSTROM KARL R.
分类号
B61F5/12
主分类号
B61F5/12
代理机构
代理人
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地址
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