发明名称 Rail-cleaning freight car wheels and truck
摘要 A non-electric rail-cleaning device for toy and model trains is described including providing wheels and a truck as an efficient means of keeping rails clean of foreign material. The design provides a convenient and economical means of eliminating the manual operation of cleaning track to ensure good electrical contact between the current-carrying rails and locomotive.
申请公布号 US2004089191(A1) 申请公布日期 2004.05.13
申请号 US20020289811 申请日期 2002.11.08
申请人 THEISING JOHN L. 发明人 THEISING JOHN L.
分类号 A63H19/15;(IPC1-7):B61D1/00 主分类号 A63H19/15
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