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发明名称
Box and bearing for railway vehicles
摘要
申请公布号
US1869795(A)
申请公布日期
1932.08.02
申请号
US19300474757
申请日期
1930.08.12
申请人
BLUE JOSEPH N
发明人
BLUE JOSEPH N.
分类号
B61F17/18
主分类号
B61F17/18
代理机构
代理人
主权项
地址
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