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发明名称
Railway car
摘要
申请公布号
US1851486(A)
申请公布日期
1932.03.29
申请号
US19300456864
申请日期
1930.05.29
申请人
BLACKHALL
发明人
BLACKHALL JOHN ROBERT;PARDEE HARVEY S.
分类号
B61F1/14;E04D13/04
主分类号
B61F1/14
代理机构
代理人
主权项
地址
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