Railway crossing structure,申请号GB19300015364-传众专利搜索

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发明名称	Railway crossing structure
摘要
申请公布号	GB347505(A)	申请公布日期	1931.04.30
申请号	GB19300015364	申请日期	1930.05.19
申请人	JAMES HENRY ASSELIN	发明人
分类号	E01B7/28	主分类号	E01B7/28
代理机构		代理人
主权项
地址

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