<p>A stepladder includes a longer inclined frame provided with steps coupled to a shorter stabilizer frame provided with rungs for movement relative to the longer inclined frame between an expanded use position and a collapsed storage position. The stepladder also includes a top-step lock to lock the top step in a fixed position relative to the two frames.</p>
申请公布号
WO2008123874(A1)
申请公布日期
2008.10.16
申请号
WO2007US61762
申请日期
2007.02.07
申请人
COSCO MANAGEMENT, INC.;GIBSON, WILLIAM, R.;MEEKER, PAUL, K.