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发明名称
CONTROL VALVE DEVICE
摘要
申请公布号
CA532878(A)
申请公布日期
1956.11.06
申请号
CAD532878
申请日期
申请人
WESTINGHOUSE AIR BRAKE COMPANY
发明人
ELLIS E. HEWITT
分类号
主分类号
代理机构
代理人
主权项
地址
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