Automatic crossing gate,申请号US19390261103-传众专利搜索

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发明名称	Automatic crossing gate
摘要
申请公布号	US2295419(A)	申请公布日期	1942.09.08
申请号	US19390261103	申请日期	1939.03.10
申请人	WESTERN RAILROAD SUPPLY COMPANY	发明人	MISKELLY SAMUEL
分类号	B61L29/22;E01F13/06	主分类号	B61L29/22
代理机构		代理人
主权项
地址

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