发明名称 Wheelchair compatible lawn swing
摘要 A free-standing lawn swing having a fold down platform which permits access by wheelchair bound users. A ramp platform pivots from a support platform. A crank arm linkage raises and lowers the ramp platform between reclined, loading, and raised, safety positions. A ground ramp section mates to the ramp platform.
申请公布号 US5938283(A) 申请公布日期 1999.08.17
申请号 US19970934605 申请日期 1997.09.22
申请人 BABCOCK, MARTIN;KNUTSEN, GEORGE 发明人 BABCOCK, MARTIN;KNUTSEN, GEORGE
分类号 A47C3/02;A47D13/10;A61G3/06;A61G5/10;A63G9/02;(IPC1-7):A47D13/10 主分类号 A47C3/02
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