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发明名称
Running board for railway cars
摘要
申请公布号
US2176670(A)
申请公布日期
1939.10.17
申请号
US19370138271
申请日期
1937.04.21
申请人
STANDARD RAILWAY EQUIPMENT MANUFACTURING COMPANY
发明人
HAWKSWORTH DAVID W.
分类号
B61D23/00
主分类号
B61D23/00
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代理人
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