A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
An extendable ladder having a collapsed mode and an extended mode, characterized in that when the ladder is transformed from the collapsed mode to the extended mode, at least one ground stabilizer extends laterally from the ladder to widen the footprint of the ladder.
An extendable ladder having a collapsed mode and an extended mode, characterized in that when the ladder is transformed from the collapsed mode to the extended mode, at least one ground stabilizer extends laterally from the ladder to widen the footprint of the ladder.
Collapsible ladder
WESTON RICHARD (author)
2016-05-24
Patent
Electronic Resource
English
IPC:
E06C
LADDERS
,
Leitern