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发明名称	DATA COMMUNICATION SYSTEMS
摘要
申请公布号	EP0178137(B1)	申请公布日期	1990.07.18
申请号	EP19850307147	申请日期	1985.10.07
申请人	GEC PLESSEY TELECOMMUNICATIONS LIMITED	发明人	CHEETHAM, ROBERT;ROBERTS, MARTIN
分类号	H04Q11/04	主分类号	H04Q11/04
代理机构		代理人
主权项
地址

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