An adjustable and extendable leg with nestable segments to provide a choice of lengths. The leg may be pivotably connected to a platform so as to be able to dispose the platform at selected angles and heights with respect to a horizontal support surface.
申请公布号
US4416439(A)
申请公布日期
1983.11.22
申请号
US19810253152
申请日期
1981.04.10
申请人
DIMPFEL, FRED;HAHN, STEVEN J.;DYSON, BRIAN J.;DOYON, SANDRA F.
发明人
DIMPFEL, FRED;HAHN, STEVEN J.;DYSON, BRIAN J.;DOYON, SANDRA F.