A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A locking mechanism for a ladder tray is disclosed. The locking mechanism includes two locking points on the frame or handle of the ladder while allowing single-handed operation.
A locking mechanism for a ladder tray is disclosed. The locking mechanism includes two locking points on the frame or handle of the ladder while allowing single-handed operation.
LADDER TRAY LOCKING MECHANISM
FOLEY JOSEPH P (author)
2020-06-18
Patent
Electronic Resource
English