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发明名称
IMPROVEMENTS RELATING TO INFORMATION TRANSMISSION SYSTEMS
摘要
申请公布号
GB1200512(A)
申请公布日期
1970.07.29
申请号
GB19680011968
申请日期
1968.03.12
申请人
WESTINGHOUSE BRAKE AND SIGNAL COMPANY LIMITED
发明人
TIMOTHY JAMES GRAVINA
分类号
H04Q9/04
主分类号
H04Q9/04
代理机构
代理人
主权项
地址
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