A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A foldable step stool includes a step and a pair of legs. The legs are mounted on the step for movement between use and storage positions.
A foldable step stool includes a step and a pair of legs. The legs are mounted on the step for movement between use and storage positions.
FOLDING STEP STOOL
GIBSON WILLIAM R (author)
2015-11-12
Patent
Electronic Resource
English
IPC:
E06C
LADDERS
,
Leitern