A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ERGONOMIC MOVEABLE RUNG FOR LADDER
The common and extension ladders are presently used to climb and descend from different heights and the rungs are not wide enough to provide comfortable support to stand on when performing tasks for an extended period of time.
ERGONOMIC MOVEABLE RUNG FOR LADDER
The common and extension ladders are presently used to climb and descend from different heights and the rungs are not wide enough to provide comfortable support to stand on when performing tasks for an extended period of time.
ERGONOMIC MOVEABLE RUNG FOR LADDER
ECHELON ERGONOMIQUE DEPLACABLE POUR ECHELLE
TREMBLAY FERNAND J (author)
2016-03-10
Patent
Electronic Resource
English
IPC:
E06C
LADDERS
,
Leitern