发明名称 Roller skating rink
摘要 An indoor roller skating rink having a figure 8 shape track supported on a foundation and including a pair of banked opposite end sections connected by a pair of intermediate sections. One of the intermediate sections is ramped, passes under the other intermediate section, and is disposed substantially below grade level. Foundation walls which form side walls of the ramped section support the other intermediate section which crosses above it.
申请公布号 US4172593(A) 申请公布日期 1979.10.30
申请号 US19770831091 申请日期 1977.09.06
申请人 PALAKANIS, RONALD J 发明人 PALAKANIS, RONALD J
分类号 A63C19/10;E01C13/00;(IPC1-7):A63C19/10 主分类号 A63C19/10
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