A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
LADDER EXTENSION BRAKING SYSTEM
A ladder extension braking system, for use on extension ladders with an adjustment rope for adjusting one or more sliding extension ladder sections, activated by releasing the rope and de-activated by pulling on the rope. The brake works at any point in the relative positions of the sections.
LADDER EXTENSION BRAKING SYSTEM
A ladder extension braking system, for use on extension ladders with an adjustment rope for adjusting one or more sliding extension ladder sections, activated by releasing the rope and de-activated by pulling on the rope. The brake works at any point in the relative positions of the sections.
LADDER EXTENSION BRAKING SYSTEM
LANZAFAME PHILIP F (author)
2016-08-25
Patent
Electronic Resource
English
IPC:
E06C
LADDERS
,
Leitern
| British Library Online Contents | 2003