Patents Assigned to APC Industrial Co., Ltd.
  • Folding staircase
    Patent number: 5941342
    Abstract: A folding staircase comprises a plurality of step units each having a pair of horizontal link bars 41b, a pair of vertical link bars 42b that are pivotally coupled to corresponding the horizontal link bars, and a plate 20b that are connected between the horizontal link bars, wherein the ends of the horizontal link bars are pivotally combined with those of the adjacent vertical link bars to form a step portion, and a fixing unit for fixing the step portion to a vehicle.
    Type: Grant
    Filed: February 3, 1998
    Date of Patent: August 24, 1999
    Assignee: APC Industrial Co., Ltd.
    Inventor: Byung-tae Lee