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Priority to JP4085476UpriorityCriticalpatent/JPS5537680Y2/ja
Publication of JPS52133100UpublicationCriticalpatent/JPS52133100U/ja
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Publication of JPS5537680Y2publicationCriticalpatent/JPS5537680Y2/ja
E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
E06C—LADDERS
E06C1/00—Ladders in general
E06C1/02—Ladders in general with rigid longitudinal member or members
E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
E06C1/125—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic with tubular longitudinal members nested within each other
E—FIXED CONSTRUCTIONS
E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
E06C—LADDERS
E06C1/00—Ladders in general
E06C1/02—Ladders in general with rigid longitudinal member or members
E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
E06C1/381—Ladders with rungs or treads attached only to one rigid longitudinal member
