发明名称 Portable step
摘要 A new and improved portable step comprising a top platform having a front portion that extends downwardly therefrom. The top platform has a metal edging around a periphery thereof. The metal edging serves to protect the periphery from chipping and splitting. Included in the device are two side supports. Each of the two side supports has a spring loaded hinge theresecured. Each spring loaded hinge is secured to the top platform. Each of the two side supports is extendable to a position perpendicular to the top platform. Each of the two side supports is foldable to a position against the top platform. A front support is hingedly secured to the front portion of the top platform. The front support is extendable to a position perpendicular to the top platform resting against the two side supports. The front support is foldable to a position retaining the two side supports against the top platform.
申请公布号 US5518084(A) 申请公布日期 1996.05.21
申请号 US19940344216 申请日期 1994.11.23
申请人 SHORT, JOHN W.;SHORT, MARGARET V. 发明人 SHORT, JOHN W.;SHORT, MARGARET V.
分类号 B60R3/00;(IPC1-7):A47B46/00 主分类号 B60R3/00
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