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)
2018-08-28
Patent
Electronic Resource
English