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发明名称
RAILWAY CAR SPRING SUSPENSION
摘要
申请公布号
CA439039(A)
申请公布日期
1947.01.07
申请号
CAD439039
申请日期
申请人
HICKMAN PNEUMATIC SEAT CO. INC.
发明人
ALBERT F. HICKMAN
分类号
主分类号
代理机构
代理人
主权项
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