A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
An extension ladder including a base section and a fly section. The fly section is slidably engaged with the base section. The extension ladder includes a ladder descent accessory which counteracts at least a portion of the weight of the fly section as the fly section is lowered relative to the base section.
An extension ladder including a base section and a fly section. The fly section is slidably engaged with the base section. The extension ladder includes a ladder descent accessory which counteracts at least a portion of the weight of the fly section as the fly section is lowered relative to the base section.
Extension Ladder Accessory
MAHER JOHN (author)
2024-10-17
Patent
Electronic Resource
English
IPC:
E06C
LADDERS
,
Leitern