发明名称 CUSHIONED RAILROAD TRACK ROADWAY CROSSING MODULE
摘要 <p>A cushioned railroad track roadway crossing module comprises a base having a central raised section and a pair of opposite depressed side sections. Releasable rail fixation members for releasably fixing a pair of rails to the base in substantially parallel relation to each other are mounted one on each side of the base, substantially at the boundary between the central and side base sections.</p>
申请公布号 CA1257236(A) 申请公布日期 1989.07.11
申请号 CA19880570957 申请日期 1988.06.30
申请人 UTILITY VAULT CO., INC. 发明人 HARMON, PAUL G.
分类号 E01B2/00;(IPC1-7):E01B2/00 主分类号 E01B2/00
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