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发明名称
Lubricating device for the axle bearings of railway vehicles
摘要
申请公布号
US2197704(A)
申请公布日期
1940.04.16
申请号
US19360113714
申请日期
1936.12.01
申请人
ALEX. FRIEDMANN
发明人
NEMETZ GUSTAV
分类号
B61F15/22;B61F17/20
主分类号
B61F15/22
代理机构
代理人
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