Improved apparatus for controlling traffic more particularly on single line railways,申请号GB19330009461-传众专利搜索

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发明名称	Improved apparatus for controlling traffic more particularly on single line railways
摘要
申请公布号	GB417264(A)	申请公布日期	1934.10.01
申请号	GB19330009461	申请日期	1933.03.29
申请人	JOHN DUNCAN CAMPBELL COUPER	发明人
分类号	B61L23/24	主分类号	B61L23/24
代理机构		代理人
主权项
地址

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