发明名称 Portable rebound ball game
摘要 A portable stepball game apparatus has a collapsible stairway with a plurality of steps. Each step has a vertical riser portion, a horizontal tread portion, and a nosing on the forward or player-facing edges of the tread portions which protrudes over the riser portions. The game's pivotable stairway configuration is readily housed for storage in a carrying case specifically adapted to be easily portable. It is designed such that one person can lift the carrying case with one hand and easily move it from location to location.
申请公布号 US7942419(B2) 申请公布日期 2011.05.17
申请号 US20090590736 申请日期 2009.11.13
申请人 GELZINIS ANTHONY C;GELZINIS-ENOCH THERESA;GELZINIS MICHAEL A 发明人 GELZINIS ANTHONY C.;GELZINIS-ENOCH THERESA;GELZINIS MICHAEL A.
分类号 A63B63/00 主分类号 A63B63/00
代理机构 代理人
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