MODULAR RAILROAD GRADE CROSSING,申请号CA19750225646-传众专利搜索

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发明名称	MODULAR RAILROAD GRADE CROSSING
摘要	<p>A modular railroad grade crossing comprises in combination a railroad grade crossing base on which are superimposed rails and flangeway guards secured rigidly to the base and to each other.</p>
申请公布号	CA1032136(A)	申请公布日期	1978.05.30
申请号	CA19750225646	申请日期	1975.04.28
申请人	RAILCO, INC.	发明人	HARMON, PAUL G.
分类号	E01C9/04	主分类号	E01C9/04
代理机构		代理人
主权项
地址

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