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发明名称
Friction means for railway car turck bolster
摘要
申请公布号
US2704039(A)
申请公布日期
1955.03.15
申请号
US19490124265
申请日期
1949.10.29
申请人
W. H. MINER, INC.
发明人
WITHALL WILLIAM E.
分类号
B61F5/12
主分类号
B61F5/12
代理机构
代理人
主权项
地址
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