ERGONOMIC EXTENDABLE/RETRACTABLE LADDER

An extendable/retractable ladder assembly includes a first column and a second column, the first column nesting in the second column, and a first rung coupled to, and extending from the second column. A ladder assembly bracket includes a collar portion, which extends about the second column, and a r...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	KIEFFER, MITCHELL, I, KELLY, MICHAEL, J, SHAKAL, WAYNE, A, AIZMAN, CRAIG, S, HILLUKKA, BRUCE, A
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL FIXED CONSTRUCTIONS LADDERS
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