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发明名称
Improvements in control apparatus for railway car classification hump yards
摘要
申请公布号
GB903742(A)
申请公布日期
1962.08.22
申请号
GB19580035326
申请日期
1958.11.04
申请人
WESTINGHOUSE AIR BRAKE COMPANY
发明人
分类号
B61L17/02
主分类号
B61L17/02
代理机构
代理人
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