发明名称 Horizontal seam boxcar side wall
摘要 Smooth interior walls for steel boxcars are provided by an improved fabrication technique. The boxcar side wall is constructed using a horizontal offset seam joined by welding. There are no vertical butt welds in the side assembly, which butt welds and the reinforcements associated with such welds have traditionally caused damage to sensitive cargo like newsprint rolls.
申请公布号 US2002020325(A1) 申请公布日期 2002.02.21
申请号 US20010928877 申请日期 2001.08.13
申请人 MACDONALD GLENN 发明人 MACDONALD GLENN
分类号 B61D17/08;B62D33/04;(IPC1-7):B61D17/00;B61D45/00 主分类号 B61D17/08
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