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发明名称
Traction increasing device
摘要
申请公布号
US1879704(A)
申请公布日期
1932.09.27
申请号
US19300503476
申请日期
1930.12.19
申请人
THE WESTINGHOUSE AIR BRAKE COMPANY
发明人
MCCUNE JOSEPH C.
分类号
B61C15/04
主分类号
B61C15/04
代理机构
代理人
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地址
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