A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
An attachment for a ladder includes a pair of rung tubes for engaging the hollow rungs of a ladder secured together by at least one end tube.
An attachment for a ladder includes a pair of rung tubes for engaging the hollow rungs of a ladder secured together by at least one end tube.
RESCUE LADDER ATTACHMENT
HOFFMANN ROSS (author)
2020-08-13
Patent
Electronic Resource
English
IPC:
E06C
LADDERS
,
Leitern