CONTROL OF MULTIPLE HIGHWAY CROSSINGS,申请号GB19720027066-传众专利搜索

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发明名称	CONTROL OF MULTIPLE HIGHWAY CROSSINGS
摘要
申请公布号	GB1336690(A)	申请公布日期	1973.11.07
申请号	GB19720027066	申请日期	1972.09.09
申请人	GENERAL SIGNAL CORPORATION	发明人
分类号	B61L29/28;(IPC1-7):B61L29/22	主分类号	B61L29/28
代理机构		代理人
主权项
地址

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