Radio-based railway switch control system,申请号US19890444506-传众专利搜索

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发明名称	Radio-based railway switch control system
摘要
申请公布号	US5050823(A)	申请公布日期	1991.09.24
申请号	US19890444506	申请日期	1989.11.30
申请人	GENERAL SIGNAL CORPORATION	发明人	PARKER, JOHN W.
分类号	B61L7/06;B61L7/08;G06F11/08	主分类号	B61L7/06
代理机构		代理人
主权项
地址

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