Improvements relating to railway or like crossing gates or barriers,申请号GB19280028123-传众专利搜索

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发明名称	Improvements relating to railway or like crossing gates or barriers
摘要
申请公布号	GB298532(A)	申请公布日期	1930.03.03
申请号	GB19280028123	申请日期	1928.10.01
申请人	STANDARD AUTOMATIC SIGNAL CORPORATION	发明人
分类号	B61L29/22	主分类号	B61L29/22
代理机构		代理人
主权项
地址

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